OSA's Digital Library

Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 1 — Jan. 14, 2013
  • pp: 822–833
« Show journal navigation

Two-photon excited fluorescence in the LYB:Eu monoclinic crystal: towards a new scheme of single-beam dual-voxel direct laser writing in crystals

Y. Petit, A. Royon, N. Marquestaut, M. Dussauze, A. Fargues, P. Veber, V. Jubera, T. Cardinal, and L. Canioni  »View Author Affiliations


Optics Express, Vol. 21, Issue 1, pp. 822-833 (2013)
http://dx.doi.org/10.1364/OE.21.000822


View Full Text Article

Acrobat PDF (937 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We report on two-photon excited fluorescence in the oriented Eu3+-doped LYB monoclinic crystal under femtosecond laser tight focusing. Due to spatial walk-off, the two polarization modes of the incident femtosecond beam simultaneously provide the independent excitation of two distinct focuses, leading to a single-beam dual-voxel nonlinear excitation of fluorescence below material modification threshold. These observations emphasize on the anisotropy of both two-photon absorption as well as fluorescence emission. They demonstrate the localized control of the nonlinear energy deposit, thanks to the adjustment of both the input power and polarization, by properly balancing the injected energy in each voxel. Such approach should be considered for future direct laser writing of waveguides in propagation directions out of the dielectric axes, so as to optimally cope with the highly probable anisotropy of laser-induced material modification thresholds in these crystals. These results open new ways for further potential developments in direct laser writing as the simultaneous inscription of double-line structures for original waveguides processes.

© 2013 OSA

1. Introduction

From an instrumental point of view, laser-written waveguide structures have been observed by using a wide range of imaging techniques, such as transmission electron microscopy (TEM) [21

21. T. Gorelik, M. Will, S. Nolte, A. Tuennermann, and U. Glatzel, “Transmission electron microscopy studies of femtosecond laser induced modifications in quartz,” Appl. Phys., A Mater. Sci. Process. 76(3), 309–311 (2003). [CrossRef]

], polarization microscopy [14

14. J. Siebenmorgen, K. Petermann, G. Huber, K. Rademaker, S. Nolte, and A. Tünnermann, “Femtosecond laser written stress-induced Nd:Y3Al5O12 (Nd:YAG) channel waveguide laser,” Appl. Phys. B 97(2), 251–255 (2009). [CrossRef]

, 23

23. W. Yang, P. G. Kazansky, and Y. P. Svirko, “Non-reciprocal ultrafast laser writing,” Nature 2, 99–104 (2008).

], atomic force microscopy (AFM) [14

14. J. Siebenmorgen, K. Petermann, G. Huber, K. Rademaker, S. Nolte, and A. Tünnermann, “Femtosecond laser written stress-induced Nd:Y3Al5O12 (Nd:YAG) channel waveguide laser,” Appl. Phys. B 97(2), 251–255 (2009). [CrossRef]

], and confocal Raman imaging [25

25. A. Ródenas, A. H. Nejadmalayeri, D. Jaque, and P. Herman, “Confocal Raman imaging of optical waveguides in LiNbO3 fabricated by ultrafast high-repetition rate laser-writing,” Opt. Express 16(18), 13979–13989 (2008). [CrossRef] [PubMed]

]. Therefore, two-photon excited fluorescence is expected to be of particular interest to probe optical anisotropies of both pristine and structured crystals, since such technique can be controlled below laser-induced crystal modification. Two-photon fluorescence could thus provide further relevant tool for 3D local probing with laser/crystal interactions in polarized light.

In this article, we consider the nonlinear two-photon absorption and the subsequent fluorescence emission, both in polarized light, in the monoclinic biaxial borate crystal Li6Y(BO3)3, doped with the Eu3+ rare earth ion. The reported work is performed below laser-induced crystal modification threshold, and it provides thus a preliminary work towards potential DLW of waveguides in such crystal. Thanks to spatial walk-off for propagation out of the dielectric axes, we report on single-beam dual-voxel nonlinear excitation of fluorescence, as well as its polarization analysis. The voxel spatial locations and the collected fluorescence intensity are compared for each pump and fluorescence polarization schemes. When considered above the laser-induced permanent modification threshold, such multi-photon excitation may further lead to original single-beam dual-voxel DLW, which might open the ability to simultaneously write two parallel optical waveguides, as highly considered by Burghoff et al. [19

19. J. Burghoff, C. Grebing, S. Nolte, and A. Tünnermann, “Efficient frequency doubling in femtosecond laser-written waveguides in lithium niobate,” Appl. Phys. Lett. 89(8), 081108 (2006). [CrossRef]

]. In a reversed approach, these developments also introduce the same potentialities for further single-beam dual-voxel laser probing. Finally, these aspects contribute to develop nonlinear local probing techniques in crystals with two-photon excited fluorescence in polarized light, so as to optically measure local inhomogeneities in laser materials, these modifications resulting either from undesired laser damage or from controlled DLW.

2. LiY(BO3)3:Eu3+ crystal orientation

The considered crystal was a lithium yttrium borate crystal matrix, labeled Li6Y(BO3)3, grown with the Chockralzki technique under congruent melting, with a 26% atomic substitution of Y3+ ions by Eu3+ ions, providing additional spectroscopic properties without significant changes of the initial crystal matrix properties [29

29. J. Hölsa and M. Leskelä, “Optical study of Eu3+ luminescence in lithium rare earth borates, Li6RE(BO3)3; RE = Gd, Y,” J. Lumin. 48-49, 497–500 (1991). [CrossRef]

, 30

30. V. Jubera, J.-P. Chaminade, A. Garcia, F. Guillen, and C. Fouassier, “Luminescent properties of Eu3+-activated lithium rare earth borates and oxyborates,” J. Lumin. 101(1-2), 1–10 (2003). [CrossRef]

].

The Li6Y(BO3)3:Eu3+ biaxial crystal, hereafter labeled LYB:Eu, is a centro-symmetric crystal that belongs to the {P 21/c} symmetry group (crystallographic data on isostructural Yb matrix available in ref. 31

31. G. K. Abdullaev and K. S. Mamedov, Sov. Phys. Crystallogr. 22(2), 220–222 (1997).

). Its crystallographic frame (a, b, c) is a non-orthogonal frame where a = 7.157 nm, b = 16.378 nm, and c = 6.623 nm; The monoclinic axis b is perpendicular to the (a, c) plane; the angle β = (a, c) is typically 105.32°. Strong anisotropy of its optical properties is expected due to the monodimensional connexion of the rare earth polyhedra forming chain parallel to the c-axis. The orthonormal dielectric frame (X, Y, Z) is partially attached to the crystallographic frame, since symmetry considerations impose the Y and b vectors to be collinear. Note here that the dielectric Y-axis is therefore strictly fixed by crystallographic properties, while the (X, Z) vectors remain unfixed with an a priori possible dispersion of orientation with wavelength [32

32. M. Born and E. Wolf, Principles of Optics (Oxford, 1965).

, 33

33. H. Hellwig, J. Liebertz, and L. Bohaty, “Linear optical properties of the monoclinic bismuth BiB3O6,” J. Appl. Phys. 88(1), 240 (2000). [CrossRef]

]. The four vectors (X, Z) and (a, c) are therefore all distinct but they are contained in the same plane, in relation to the typical dielectric orientations, with (a, X) = 39° and (c, Z) = 24° [34

34. P. Segonds, V. Jubera, J. Debray, and B. Ménaert, private communication.

], as seen in Fig. 1(a)
Fig. 1 (a) Relative orientation of the crystallographic frame (a, b, c) and the partially attached dielectric frame (X, Y, Z) in the LYB:Eu monoclinic crystal. (b) LYB:Eu crystal sample orientation under microscope experiments with light propagation direction along the c-axis, associated to two polarization eigenmodes respectively parallel or perpendicular to the b-axis, thus respectively parallel to the Y-axis or to the u-direction; blue arrows indicate the polarization directions of the experimental setup described in Fig. 2, ensuring the relevant correspondence of both the crystal polarization eigenmodes and the experimental detection directions in polarized light.
.

The LYB:Eu sample under study was oriented by X-ray diffraction, cut with a 1 mm thickness and polished to optical quality with faces perpendicular to the crystallographic c-axis, ensuring the fixed dielectric b-axis to be parallel to the polished faces, as illustrated in Fig. 1(b). For such light propagation direction along the c-axis that belongs to the (X, Z) dielectric plane, the two polarization eigenmodes are orthogonal to each other. The first polarization mode, labelled as the ordinary mode eo={0,1,0} in Cartesian coordinates in the dielectric frame, is parallel to the b-axis, while the second mode, labelled as the extraordinary mode ee={cos(θρ),0,sin(θρ)} is perpendicular to the b-axis, and thus tangent to the (a, c) plane. The angle θ is the spherical angle in the (X, Z) dielectric plane that depicts the selected propagation direction, here along the c-axis so that θ=(Z,c), while the angle ρ is the associated double refraction angle [35

35. B. Boulanger and J. Zyss, International Tables for Crystallography Vol. D: A. Authier Ed., International Union of Crystallography, (Kluwer, Academic Publisher, 2006), chapt. 1.7: nonlinear optical properties.

]. The ordinary mode orientation is fixed by crystallographic symmetry, while the extraordinary mode orientation might a priori disperse with wavelength in such monoclinic system [32

32. M. Born and E. Wolf, Principles of Optics (Oxford, 1965).

, 33

33. H. Hellwig, J. Liebertz, and L. Bohaty, “Linear optical properties of the monoclinic bismuth BiB3O6,” J. Appl. Phys. 88(1), 240 (2000). [CrossRef]

]. Therefore, note that this crystal orientation has been selected on purpose, since such orientation affords to independently address each polarization eigenmode, for both excitation and collection of fluorescence, without being sensitive to any dielectric frame dispersion. One can thus ensure to perform excitation and emission measurements along one single emission polarization mode at a time, which was a necessary precaution for the two-photon fluorescence analysis in polarized light described hereafter.

3. Experimental setup

The experimental setup was based on a home-made nonlinear fluorescence microscope, including a femtosecond laser (Ti:Sa oscillator, 2W, 80 MHz, 120 fs at 800 nm, Tsunami, Spectra Physics), an acousto-optic modulator and a half wave plate at 800 nm to control both the incident irradiance and laser polarization, a microscope objective (Mitutoyo, APO PLAN, 100 × , NA 0.9), and a high precision 3D translation stage for nanometric positioning of the crystal under irradiation (XMS-50 stages, Micro-Contrôle, 50 nm resolution). Two-photon excited fluorescence was obtained by soliciting the 4f-4f atomic transitions of the europium ions. Indeed, two-photon excited fluorescence (absorption in the 5L6 excited level of Eu3+ and emission from the 5D0 singlet down to the 7FJ (J = 0-6) manifold at around 613 nm) was detected in epi-collection configuration in polarized light, with light propagation also along the c-axis, with a CCD camera (Sony XCD-SX90CR). Since the energy difference between the 7F0 ground and 5L6 excited levels typically corresponds to 3.16 eV (394.5 nm) [30

30. V. Jubera, J.-P. Chaminade, A. Garcia, F. Guillen, and C. Fouassier, “Luminescent properties of Eu3+-activated lithium rare earth borates and oxyborates,” J. Lumin. 101(1-2), 1–10 (2003). [CrossRef]

], the simultaneous absorption of two photons from the incident broadband laser beam at 800 nm matches rather well such energy difference, leading to an almost optimal resonant two-photon absorption. The 5L6 excited level undergoes fast non-radiative multiple de-excitations towards the lower excited level 5D0 which energy position is typically located at 2.15 eV (580 nm) from the 7F0 ground level. Such 5D0 excited state is known to show long-lasting fluorescence emission, with a millisecond-scale lifetime, towards the 7FJ (J = 0-6) ground manifolds, especially through the strong emission transition of 2.03 eV (613.5 nm) towards 7F2 in the case of highly Eu3+-doped LYB matrix [30

30. V. Jubera, J.-P. Chaminade, A. Garcia, F. Guillen, and C. Fouassier, “Luminescent properties of Eu3+-activated lithium rare earth borates and oxyborates,” J. Lumin. 101(1-2), 1–10 (2003). [CrossRef]

].

The fluorescence was recorded by the CCD camera without spectral discrimination, leading to the spectral integration of fluorescence from the 5D07FJ emission levels in the orange-red range between 580 nm and 750 nm, with a maximum emission around 613 nm. The low spectral dispersion of the refractive index properties of this material in the orange-red-NIR range led the different emission lines to undergo the same propagation behavior. Finally, this setup, as seen in Fig. 2
Fig. 2 Experimental setup of the homemade femtosecond nonlinear microscope, providing independent control of the irradiating beam polarization with the half wave plate (HWP) orientation and of the selected polarization of the fluorescence emission with the Glan polarizer.
, authorized to independently control the incident beam polarization and that of the epi-collected fluorescence emission. The Glan polarizer was alternatively aligned along each of the two polarization eigenmodes of the epi-collected fluorescence.

4. Linear propagation along the c-axis and walk-off aspects

With the excitation beam being polarized at 45° with respect to the b-axis and the u-direction, both ordinary and extraordinary propagation modes were simultaneously injected in the LYB:Eu sample, leading thanks to walk-off aspects to two distinct nonlinear two-photon excitations at the two spatially separated nonlinear voxels, as illustrated in Fig. 3(a)
Fig. 3 (a) Illustration of the two nonlinear voxels resulting from the pump focusing of each polarization mode, where the extraordinary mode undergoes spatial walk-off leading spatial separation of the Poynting vectors; (b) Schematic field of hypothetical stress-induced refractive index increase from single-beam dual-voxel irradiation above permanent modification irradiance threshold, potentially leading to the simultaneous writing of two structured areas at the root of type II waveguiding in their inner region, as developed in Ref [19]; (c) & (d) Illustrations of the fluorescence propagation emitted from each of the nonlinear voxels below permanent modification thresholds, for both ordinary and extraordinary polarization modes and epi-collection propagation.
. For irradiation below laser-induced permanent modification threshold, each nonlinear voxel then behaved as a distinct and independent fluorescence emission point, each one simultaneously providing ordinary and extraordinary polarized fluorescence emissions, as illustrated in Figs. 3(c) and 3(d), respectively. Note that the microscope objective imposed the angular selection of the epi-collected fluorescence wave vectors for both ordinary and extraordinary polarization modes, from each of the two nonlinear excited voxels, which insured the spatial discrimination of the distinct fluorescence spots in the CCD images, as illustrated in Fig. 3(c) and 3(d) and as further demonstrated in Fig. 4
Fig. 4 Pictures of the two-photon excited epi-fluorescence in polarized light for both the pump laser beam and the collected beam. Polarizations o and e stand for the ordinary and extraordinary modes, respectively, for both the pump and the epi-fluorescence beams. (a), (b), (c) and (d): Polarization schemes with oo, oe, ee and eo polarization modes for the pump and the epi-fluorescence beams, respectively. The cross is at the same place in each picture, and is present for visual help.
. For hypothetic irradiation above laser-induced permanent modification threshold, Fig. 3(b) reminds the illustration of a hypothetical refractive index increase around laser-induced structures, due to photo-elastic stress-induced field, in the potential case of type II waveguide writing where the guiding area may stand in the inner part between the two laser-induced structured lines, as proposed by Ref [19

19. J. Burghoff, C. Grebing, S. Nolte, and A. Tünnermann, “Efficient frequency doubling in femtosecond laser-written waveguides in lithium niobate,” Appl. Phys. Lett. 89(8), 081108 (2006). [CrossRef]

]. Such type II material modification has yet not been reported in this LYB:Eu crystal. However, for irradiances above permanent material modification threshold in the case of our single-beam dual-voxel irradiation, one might expect to simultaneously generate the two modified lines, instead of two successive writing steps in the current approach. Such single-beam dual-focus waveguide writing is thus a new open perspective.

The three fluorescence positions from the four polarization schemes, reported in Fig. 4, confirmed the understanding of the linear propagation of both the exciting and fluorescence beams, as illustrated in Fig. 3. It also demonstrated that the double refraction angle was very similar for these two beams with quite similar wavelengths. This similarity between the double refraction angles corresponds to a very limited refractive index dispersion between the 800 nm pump beam and the typically 600 nm fluorescence beam. It also tends to indicate an almost null orientation dispersion of the dielectric frame for wavelengths between 600 nm and 800 nm. Moreover, the extraordinary/extraordinary polarization scheme, where both the exciting and the epi-fluorescence beams undergo double refraction, was imaged at the same camera position as the ordinary/ordinary polarization scheme, since walk-off effects cancel, due to the fact that the two beams propagated along the same c-axis but in opposite directions (as it is sometimes exploited in OPO cavities with two twin crystals in opposite orientations to cancel double refraction effects [35

35. B. Boulanger and J. Zyss, International Tables for Crystallography Vol. D: A. Authier Ed., International Union of Crystallography, (Kluwer, Academic Publisher, 2006), chapt. 1.7: nonlinear optical properties.

]). Such absence of orientation dispersion of the dielectric frame with respect to the crystallographic one was also reported elsewhere, in the case of the monoclinic crystals YCOB and YCOB:Nd [36

36. P. Segonds, B. Boulanger, J. P. Fève, B. Ménaert, J. Zaccaro, G. Aka, and D. Pelenc, “Linear and nonlinear optical properties of the monoclinic Ca4YO(BO3)3 crystal,” J. Opt. Soc. Am. B 21(4), 765–769 (2004). [CrossRef]

], contrary to the case of BIBO [33

33. H. Hellwig, J. Liebertz, and L. Bohaty, “Linear optical properties of the monoclinic bismuth BiB3O6,” J. Appl. Phys. 88(1), 240 (2000). [CrossRef]

].

5. Two-photon excited fluorescence

6. Conclusion & perspectives

In this article, we report on the two-photon excited fluorescence emission in the LYB:Eu monoclinic crystal, under tight focusing of a near-IR femtosecond laser beam. We have demonstrated the creation of two separate nonlinear voxels associated to the two pump polarization eigenmodes, these voxels leading to light emission in the two fluorescence polarization eigenmodes along the epi-collected signal. Spatial walk-off propagation leads to the spatial discrimination of each of the four polarization schemes, for both the pump and the fluorescence beams, in such biaxial crystal oriented along the crystallographic c-axis. The third-order nonlinear behavior of the two-photon absorption process was demonstrated with the quadratic evolution of the fluorescence emission versus the pump irradiance, showing anisotropic polarization dependence. A remarkably large polarization dependence has been demonstrated, where the extraordinary pump polarization provides twice more fluorescence excitation than its ordinary counterpart in the considered experimental conditions, suggesting the subsequent anisotropy of laser-induced modification thresholds for higher incident irradiances. The reported observations rise further fundamental questions as the complete description of the angular distribution in polarized light of the two-photon absorption behavior. Such issue requires a future experimental analysis including the continuous rotation of the pump polarization [40

40. S. Brasselet, V. Le Floc’h, F. Treussart, J.-F. Roch, J. Zyss, E. Botzung-Appert, and A. Ibanez, “In situ diagnostics of the crystalline nature of single organic nanocrystals by nonlinear microscopy,” Phys. Rev. Lett. 92(20), 207401 (2004). [CrossRef] [PubMed]

], as well as the consideration of several crystal orientation and light propagation directions. Such issue would also extend recent advances in monoclinic bulk crystals where angular distributions in polarized light of both fluorescence emission and single-photon absorption have been experimentally and theoretically explored, leading to very specific optical behavior [41

41. Y. Petit, S. Joly, P. Segonds, and B. Boulanger, “Recent advances in monoclinic crystal optics,” Laser Phys. Rev.: Invited Review Article (to appear in press).

].

The reported observations have been obtained below laser modification thresholds for the considered crystal, under microscope objective focusing corresponding to diffraction-limited spatial resolution. These results open interesting experimental capabilities of micron-scale 3D local probing of crystal homogeneity with a near-IR femtosecond laser beam. Such probing could be obtained either from a single excited voxel or with differential measurements from the two nonlinear voxels when simultaneously activated with a polarization control. Such probing could thus enable the local characterization of DLW, potentially doubling the speed of data reading due to single-beam dual-voxel probing, in information storage applications. In the case of the potential laser crystal LYB:Eu [42

42. R. Cattoor, I. Manek-Hönninger, J.-Ch. Delagnes, Y. Petit, B. Bousquet, V. Jubera, A. Fargues, Ph. Veber, M. Velazquez, A. Garcia, and L. Canioni, “Potential of the Eu:LYB crystal as a laser material for DPSS lasers emitting at 613 nm,” Proc. SPIE 8235, 82351A, 82351A–7 (2012). [CrossRef]

], such a two-photon fluorescence technique could help for the observation of material ageing in order to anticipate any optical breakdown.

Finally, the reported observations should be extrapolated above laser-induced permanent modification thresholds for the considered crystal, so as to provide single-beam dual-voxel DLW, leading to the simultaneous writing of photo-modified regions. By adjusting the depth of focusing, the distance between the two regions could be controlled, which open interesting potentials for the simultaneous writing of type II waveguides [19

19. J. Burghoff, C. Grebing, S. Nolte, and A. Tünnermann, “Efficient frequency doubling in femtosecond laser-written waveguides in lithium niobate,” Appl. Phys. Lett. 89(8), 081108 (2006). [CrossRef]

]. The reported anisotropy of the nonlinear fluorescence excitation imposes a careful balance of the deposited dose in each voxel. Finally, such dual-voxel DLW could apply for double-line laser or nonlinear waveguides in bulk crystals, as well as for nonlinear waveguides in periodically poled crystals where the considered light propagation direction can also be non perpendicular to the periodic ferroelectric domain walls [43

43. J.-P. Fève, B. Boulanger, B. Ménaert, and O. Pacaud, “Continuous tuning of a microlaser-pumped optical parametric generator by use of a cylindrical periodically poled lithium niobate crystal,” Opt. Lett. 28(12), 1028–1030 (2003). [CrossRef] [PubMed]

, 44

44. Y. Petit, P. Segonds, B. Boulanger, and T. Taira, “Angular Quasi-Phase Matching,” Phys. Rev. A 76(6), 063817 (2007). [CrossRef]

].

Acknowledgments

This work was supported by the French Agency of National Research and the French Aquitaine region.

References and links

1.

R. R. Gattass and E. Mazur, “Femtosecond laser micromachining in transparent materials,” Nat. Photonics 2(4), 219–225 (2008). [CrossRef]

2.

K. M. Davis, K. Miura, N. Sugimoto, and K. Hirao, “Writing waveguides in glass with a femtosecond laser,” Opt. Lett. 21(21), 1729–1731 (1996). [CrossRef] [PubMed]

3.

J. Qiu, K. Miura, T. Suzuki, T. Mitsuyu, and K. Hirao, “Permanent photoreduction of Sm3+ to Sm2+ inside a sodium aluminoborate glass by an infrared femtosecond pulsed laser,” Appl. Phys. Lett. 74(1), 10–12 (1999). [CrossRef]

4.

A. Royon, K. Bourhis, M. Bellec, G. Papon, B. Bousquet, Y. Deshayes, T. Cardinal, and L. Canioni, “Silver clusters embedded in glass as a perennial high capacity optical recording medium,” Adv. Mater. (Deerfield Beach Fla.) 22(46), 5282–5286 (2010). [CrossRef] [PubMed]

5.

M. Shimizu, M. Sakakura, M. Ohnishi, Y. Shimotsuma, T. Nakaya, K. Miura, and K. Hirao, “Vortex Dynamics in hcp Solid 4He,” J. Appl. Phys. 108, 073533 (2010). [CrossRef]

6.

E. Brasselet, A. Royon, and L. Canioni, “Dense arrays of microscopic optical vortex generators from femtosecond direct laser writing of radial birefringence in glass,” Appl. Phys. Lett. 100(18), 181901 (2012). [CrossRef]

7.

A. Podlipensky, A. Abdolvand, G. Seifert, and H. Graener, “Femtosecond laser assisted production of dichroitic 3D structures in composite glass containing Ag nanoparticles,” Appl. Phys., A Mater. Sci. Process. 80(8), 1647–1652 (2005). [CrossRef]

8.

Y. Shimotsuma, P. G. Kazansky, J. Qiu, and K. Hirao, “Self-Organized Nanogratings in Glass Irradiated by Ultrashort Light Pulses,” Phys. Rev. Lett. 91(24), 247405 (2003). [CrossRef] [PubMed]

9.

C. Hnatovsky, R. S. Taylor, E. Simova, V. R. Bhardwaj, D. M. Rayner, and P. B. Corkum, “Polarization-selective etching in femtosecond laser-assisted microfluidic channel fabrication in fused silica,” Opt. Lett. 30(14), 1867–1869 (2005). [CrossRef] [PubMed]

10.

J. Choi, M. Bellec, A. Royon, K. Bourhis, G. Papon, T. Cardinal, L. Canioni, and M. Richardson, “Three-dimensional direct femtosecond laser writing of second-order nonlinearities in glass,” Opt. Lett. 37(6), 1029–1031 (2012). [CrossRef] [PubMed]

11.

Y. Dai, B. Zhu, J. Qiu, H. Ma, B. Lu, and B. Yu, “Space-selective precipitation of functional crystals in glass by using a high repetition rate femtosecond laser,” Chem. Phys. Lett. 443(4-6), 253–257 (2007). [CrossRef]

12.

Y. Liu, B. Zhu, Y. Dai, X. Qiao, S. Ye, Y. Teng, Q. Guo, H. Ma, X. Fan, and J. Qiu, “Femtosecond laser writing of Er3+-doped CaF2 crystalline patterns in glass,” Opt. Lett. 34(21), 3433–3435 (2009). [CrossRef] [PubMed]

13.

A. Royon, Y. Petit, G. Papon, M. Richardson, and L. Canioni, “Femtosecond laser induced photochemistry in materials tailored with photosensitive agents,” Opt. Mater. Express 1(5), 866–882 (2011). [CrossRef]

14.

J. Siebenmorgen, K. Petermann, G. Huber, K. Rademaker, S. Nolte, and A. Tünnermann, “Femtosecond laser written stress-induced Nd:Y3Al5O12 (Nd:YAG) channel waveguide laser,” Appl. Phys. B 97(2), 251–255 (2009). [CrossRef]

15.

K. Kawamura, M. Hirano, T. Kurobori, D. Takamizu, T. Kamiya, and H. Hosono, “Femtosecond-laser-encoded distributed-feedback color center laser in lithium fluoride single crystals,” Appl. Phys. Lett. 84(3), 311 (2004). [CrossRef]

16.

V. Apostolopoulos, L. Laversenne, T. Colomb, C. Depeursinge, R. P. Salathé, M. Pollnau, R. Osellame, G. Cerullo, and P. Laporta, “Femtosecond-irradiation-induced refractive-index changes and channel waveguiding in bulk Ti3+:Sapphire,” Appl. Phys. Lett. 85(7), 1122 (2004). [CrossRef]

17.

F. M. Bain, A. A. Lagatsky, R. R. Thomson, N. D. Psaila, N. V. Kuleshov, A. K. Kar, W. Sibbett, and C. T. A. Brown, “Ultrafast laser inscribed Yb:KGd(WO4)2 and Yb:KY(WO4)2 channel waveguide lasers,” Opt. Express 17(25), 22417–22422 (2009). [CrossRef] [PubMed]

18.

S. M. Eaton, C. A. Merchant, R. Iyer, A. J. Zilkie, A. S. Helmy, J. S. Aitchison, P. R. Herman, D. Kraemer, R. J. D. Miller, C. Hnatovsky, and R. S. Taylor, “Raman gain from waveguides inscribed in KGd(WO4)2 by high repetition rate femtosecond laser,” Appl. Phys. Lett. 92(8), 081105 (2008). [CrossRef]

19.

J. Burghoff, C. Grebing, S. Nolte, and A. Tünnermann, “Efficient frequency doubling in femtosecond laser-written waveguides in lithium niobate,” Appl. Phys. Lett. 89(8), 081108 (2006). [CrossRef]

20.

S. J. Beecher, R. R. Thomson, D. T. Reid, N. D. Psaila, M. Ebrahim-Zadeh, and A. K. Kar, “Strain field manipulation in ultrafast laser inscribed BiB3O6 optical waveguides for nonlinear applications,” Opt. Lett. 36(23), 4548–4550 (2011). [CrossRef] [PubMed]

21.

T. Gorelik, M. Will, S. Nolte, A. Tuennermann, and U. Glatzel, “Transmission electron microscopy studies of femtosecond laser induced modifications in quartz,” Appl. Phys., A Mater. Sci. Process. 76(3), 309–311 (2003). [CrossRef]

22.

R. R. Thomson, S. Campbell, I. J. Blewett, A. K. Kar, and D. T. Reid, “Optical waveguide fabrication in z-cut lithium niobate (LiNbO3) using femtosecond pulses in the low repetition rate regime,” Appl. Phys. Lett. 88(11), 111109 (2006). [CrossRef]

23.

W. Yang, P. G. Kazansky, and Y. P. Svirko, “Non-reciprocal ultrafast laser writing,” Nature 2, 99–104 (2008).

24.

L. Yang, C. Wang, Y. Dong, N. Da, X. Hu, D. Chen, and J. Qiu, “Three-photon-excited upconversion luminescence of YVO4 single crystal by infrared femtosecond laser irradiation,” Opt. Express 13(25), 10157–10162 (2005). [CrossRef] [PubMed]

25.

A. Ródenas, A. H. Nejadmalayeri, D. Jaque, and P. Herman, “Confocal Raman imaging of optical waveguides in LiNbO3 fabricated by ultrafast high-repetition rate laser-writing,” Opt. Express 16(18), 13979–13989 (2008). [CrossRef] [PubMed]

26.

Y. Petit, B. Boulanger, P. Segonds, C. Félix, B. Ménaert, J. Zaccaro, and G. Aka, “Absorption and fluorescence anisotropies of monoclinic crystals: the case of Nd:YCOB,” Opt. Express 16(11), 7997–8002 (2008). [CrossRef] [PubMed]

27.

S. Joly, Y. Petit, B. Boulanger, P. Segonds, C. Félix, B. Ménaert, and G. Aka, “Singular topology of optical absorption in biaxial crystals,” Opt. Express 17(22), 19868–19873 (2009). [CrossRef] [PubMed]

28.

S. Joly, P. Segonds, B. Boulanger, Y. Petit, A. P. Revellez, C. Félix, and B. Ménaert, “Rotation of the absorption frame as a function of the electronic transition in the Nd3+:YCa₄O(BO₃)₃ monoclinic crystal,” Opt. Express 18(18), 19169–19174 (2010). [CrossRef] [PubMed]

29.

J. Hölsa and M. Leskelä, “Optical study of Eu3+ luminescence in lithium rare earth borates, Li6RE(BO3)3; RE = Gd, Y,” J. Lumin. 48-49, 497–500 (1991). [CrossRef]

30.

V. Jubera, J.-P. Chaminade, A. Garcia, F. Guillen, and C. Fouassier, “Luminescent properties of Eu3+-activated lithium rare earth borates and oxyborates,” J. Lumin. 101(1-2), 1–10 (2003). [CrossRef]

31.

G. K. Abdullaev and K. S. Mamedov, Sov. Phys. Crystallogr. 22(2), 220–222 (1997).

32.

M. Born and E. Wolf, Principles of Optics (Oxford, 1965).

33.

H. Hellwig, J. Liebertz, and L. Bohaty, “Linear optical properties of the monoclinic bismuth BiB3O6,” J. Appl. Phys. 88(1), 240 (2000). [CrossRef]

34.

P. Segonds, V. Jubera, J. Debray, and B. Ménaert, private communication.

35.

B. Boulanger and J. Zyss, International Tables for Crystallography Vol. D: A. Authier Ed., International Union of Crystallography, (Kluwer, Academic Publisher, 2006), chapt. 1.7: nonlinear optical properties.

36.

P. Segonds, B. Boulanger, J. P. Fève, B. Ménaert, J. Zaccaro, G. Aka, and D. Pelenc, “Linear and nonlinear optical properties of the monoclinic Ca4YO(BO3)3 crystal,” J. Opt. Soc. Am. B 21(4), 765–769 (2004). [CrossRef]

37.

M. Chavoutier, V. Jubera, P. Veber, M. Velazquez, O. Viraphong, J. Hejtmanek, R. Decourt, J. Debray, B. Menaert, P. Segonds, F. Adamietz, V. Rodriguez, I. Manek-Hönninger, A. Fargues, D. Descamps, and A. Garcia, “Thermal, optical and spectroscopic characterizations of borate laser crystals,” J. Solid State Chem. 184(2), 441–446 (2011). [CrossRef]

38.

P. Segonds, B. Boulanger, L. Ferrier, B. Ménaert, and J. Zaccaro, “Refractive indices determination of a small-size nonlinear biaxial crystal by use of double-refraction measurements with a laser beam,” J. Opt. Soc. Amer. B. 23(5), 852–856 (2006). [CrossRef]

39.

R. W. Boyd, Nonlinear Optics (Academic Press ELSEVIER, San Diego, 2008).

40.

S. Brasselet, V. Le Floc’h, F. Treussart, J.-F. Roch, J. Zyss, E. Botzung-Appert, and A. Ibanez, “In situ diagnostics of the crystalline nature of single organic nanocrystals by nonlinear microscopy,” Phys. Rev. Lett. 92(20), 207401 (2004). [CrossRef] [PubMed]

41.

Y. Petit, S. Joly, P. Segonds, and B. Boulanger, “Recent advances in monoclinic crystal optics,” Laser Phys. Rev.: Invited Review Article (to appear in press).

42.

R. Cattoor, I. Manek-Hönninger, J.-Ch. Delagnes, Y. Petit, B. Bousquet, V. Jubera, A. Fargues, Ph. Veber, M. Velazquez, A. Garcia, and L. Canioni, “Potential of the Eu:LYB crystal as a laser material for DPSS lasers emitting at 613 nm,” Proc. SPIE 8235, 82351A, 82351A–7 (2012). [CrossRef]

43.

J.-P. Fève, B. Boulanger, B. Ménaert, and O. Pacaud, “Continuous tuning of a microlaser-pumped optical parametric generator by use of a cylindrical periodically poled lithium niobate crystal,” Opt. Lett. 28(12), 1028–1030 (2003). [CrossRef] [PubMed]

44.

Y. Petit, P. Segonds, B. Boulanger, and T. Taira, “Angular Quasi-Phase Matching,” Phys. Rev. A 76(6), 063817 (2007). [CrossRef]

OCIS Codes
(160.1190) Materials : Anisotropic optical materials
(230.7370) Optical devices : Waveguides
(260.1180) Physical optics : Crystal optics
(260.1440) Physical optics : Birefringence
(260.5430) Physical optics : Polarization
(270.4180) Quantum optics : Multiphoton processes
(300.2530) Spectroscopy : Fluorescence, laser-induced
(050.6875) Diffraction and gratings : Three-dimensional fabrication

ToC Category:
Laser Microfabrication

History
Original Manuscript: September 11, 2012
Revised Manuscript: November 4, 2012
Manuscript Accepted: November 4, 2012
Published: January 8, 2013

Citation
Y. Petit, A. Royon, N. Marquestaut, M. Dussauze, A. Fargues, P. Veber, V. Jubera, T. Cardinal, and L. Canioni, "Two-photon excited fluorescence in the LYB:Eu monoclinic crystal: towards a new scheme of single-beam dual-voxel direct laser writing in crystals," Opt. Express 21, 822-833 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-1-822


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. R. R. Gattass and E. Mazur, “Femtosecond laser micromachining in transparent materials,” Nat. Photonics2(4), 219–225 (2008). [CrossRef]
  2. K. M. Davis, K. Miura, N. Sugimoto, and K. Hirao, “Writing waveguides in glass with a femtosecond laser,” Opt. Lett.21(21), 1729–1731 (1996). [CrossRef] [PubMed]
  3. J. Qiu, K. Miura, T. Suzuki, T. Mitsuyu, and K. Hirao, “Permanent photoreduction of Sm3+ to Sm2+ inside a sodium aluminoborate glass by an infrared femtosecond pulsed laser,” Appl. Phys. Lett.74(1), 10–12 (1999). [CrossRef]
  4. A. Royon, K. Bourhis, M. Bellec, G. Papon, B. Bousquet, Y. Deshayes, T. Cardinal, and L. Canioni, “Silver clusters embedded in glass as a perennial high capacity optical recording medium,” Adv. Mater. (Deerfield Beach Fla.)22(46), 5282–5286 (2010). [CrossRef] [PubMed]
  5. M. Shimizu, M. Sakakura, M. Ohnishi, Y. Shimotsuma, T. Nakaya, K. Miura, and K. Hirao, “Vortex Dynamics in hcp Solid 4He,” J. Appl. Phys.108, 073533 (2010). [CrossRef]
  6. E. Brasselet, A. Royon, and L. Canioni, “Dense arrays of microscopic optical vortex generators from femtosecond direct laser writing of radial birefringence in glass,” Appl. Phys. Lett.100(18), 181901 (2012). [CrossRef]
  7. A. Podlipensky, A. Abdolvand, G. Seifert, and H. Graener, “Femtosecond laser assisted production of dichroitic 3D structures in composite glass containing Ag nanoparticles,” Appl. Phys., A Mater. Sci. Process.80(8), 1647–1652 (2005). [CrossRef]
  8. Y. Shimotsuma, P. G. Kazansky, J. Qiu, and K. Hirao, “Self-Organized Nanogratings in Glass Irradiated by Ultrashort Light Pulses,” Phys. Rev. Lett.91(24), 247405 (2003). [CrossRef] [PubMed]
  9. C. Hnatovsky, R. S. Taylor, E. Simova, V. R. Bhardwaj, D. M. Rayner, and P. B. Corkum, “Polarization-selective etching in femtosecond laser-assisted microfluidic channel fabrication in fused silica,” Opt. Lett.30(14), 1867–1869 (2005). [CrossRef] [PubMed]
  10. J. Choi, M. Bellec, A. Royon, K. Bourhis, G. Papon, T. Cardinal, L. Canioni, and M. Richardson, “Three-dimensional direct femtosecond laser writing of second-order nonlinearities in glass,” Opt. Lett.37(6), 1029–1031 (2012). [CrossRef] [PubMed]
  11. Y. Dai, B. Zhu, J. Qiu, H. Ma, B. Lu, and B. Yu, “Space-selective precipitation of functional crystals in glass by using a high repetition rate femtosecond laser,” Chem. Phys. Lett.443(4-6), 253–257 (2007). [CrossRef]
  12. Y. Liu, B. Zhu, Y. Dai, X. Qiao, S. Ye, Y. Teng, Q. Guo, H. Ma, X. Fan, and J. Qiu, “Femtosecond laser writing of Er3+-doped CaF2 crystalline patterns in glass,” Opt. Lett.34(21), 3433–3435 (2009). [CrossRef] [PubMed]
  13. A. Royon, Y. Petit, G. Papon, M. Richardson, and L. Canioni, “Femtosecond laser induced photochemistry in materials tailored with photosensitive agents,” Opt. Mater. Express1(5), 866–882 (2011). [CrossRef]
  14. J. Siebenmorgen, K. Petermann, G. Huber, K. Rademaker, S. Nolte, and A. Tünnermann, “Femtosecond laser written stress-induced Nd:Y3Al5O12 (Nd:YAG) channel waveguide laser,” Appl. Phys. B97(2), 251–255 (2009). [CrossRef]
  15. K. Kawamura, M. Hirano, T. Kurobori, D. Takamizu, T. Kamiya, and H. Hosono, “Femtosecond-laser-encoded distributed-feedback color center laser in lithium fluoride single crystals,” Appl. Phys. Lett.84(3), 311 (2004). [CrossRef]
  16. V. Apostolopoulos, L. Laversenne, T. Colomb, C. Depeursinge, R. P. Salathé, M. Pollnau, R. Osellame, G. Cerullo, and P. Laporta, “Femtosecond-irradiation-induced refractive-index changes and channel waveguiding in bulk Ti3+:Sapphire,” Appl. Phys. Lett.85(7), 1122 (2004). [CrossRef]
  17. F. M. Bain, A. A. Lagatsky, R. R. Thomson, N. D. Psaila, N. V. Kuleshov, A. K. Kar, W. Sibbett, and C. T. A. Brown, “Ultrafast laser inscribed Yb:KGd(WO4)2 and Yb:KY(WO4)2 channel waveguide lasers,” Opt. Express17(25), 22417–22422 (2009). [CrossRef] [PubMed]
  18. S. M. Eaton, C. A. Merchant, R. Iyer, A. J. Zilkie, A. S. Helmy, J. S. Aitchison, P. R. Herman, D. Kraemer, R. J. D. Miller, C. Hnatovsky, and R. S. Taylor, “Raman gain from waveguides inscribed in KGd(WO4)2 by high repetition rate femtosecond laser,” Appl. Phys. Lett.92(8), 081105 (2008). [CrossRef]
  19. J. Burghoff, C. Grebing, S. Nolte, and A. Tünnermann, “Efficient frequency doubling in femtosecond laser-written waveguides in lithium niobate,” Appl. Phys. Lett.89(8), 081108 (2006). [CrossRef]
  20. S. J. Beecher, R. R. Thomson, D. T. Reid, N. D. Psaila, M. Ebrahim-Zadeh, and A. K. Kar, “Strain field manipulation in ultrafast laser inscribed BiB3O6 optical waveguides for nonlinear applications,” Opt. Lett.36(23), 4548–4550 (2011). [CrossRef] [PubMed]
  21. T. Gorelik, M. Will, S. Nolte, A. Tuennermann, and U. Glatzel, “Transmission electron microscopy studies of femtosecond laser induced modifications in quartz,” Appl. Phys., A Mater. Sci. Process.76(3), 309–311 (2003). [CrossRef]
  22. R. R. Thomson, S. Campbell, I. J. Blewett, A. K. Kar, and D. T. Reid, “Optical waveguide fabrication in z-cut lithium niobate (LiNbO3) using femtosecond pulses in the low repetition rate regime,” Appl. Phys. Lett.88(11), 111109 (2006). [CrossRef]
  23. W. Yang, P. G. Kazansky, and Y. P. Svirko, “Non-reciprocal ultrafast laser writing,” Nature2, 99–104 (2008).
  24. L. Yang, C. Wang, Y. Dong, N. Da, X. Hu, D. Chen, and J. Qiu, “Three-photon-excited upconversion luminescence of YVO4 single crystal by infrared femtosecond laser irradiation,” Opt. Express13(25), 10157–10162 (2005). [CrossRef] [PubMed]
  25. A. Ródenas, A. H. Nejadmalayeri, D. Jaque, and P. Herman, “Confocal Raman imaging of optical waveguides in LiNbO3 fabricated by ultrafast high-repetition rate laser-writing,” Opt. Express16(18), 13979–13989 (2008). [CrossRef] [PubMed]
  26. Y. Petit, B. Boulanger, P. Segonds, C. Félix, B. Ménaert, J. Zaccaro, and G. Aka, “Absorption and fluorescence anisotropies of monoclinic crystals: the case of Nd:YCOB,” Opt. Express16(11), 7997–8002 (2008). [CrossRef] [PubMed]
  27. S. Joly, Y. Petit, B. Boulanger, P. Segonds, C. Félix, B. Ménaert, and G. Aka, “Singular topology of optical absorption in biaxial crystals,” Opt. Express17(22), 19868–19873 (2009). [CrossRef] [PubMed]
  28. S. Joly, P. Segonds, B. Boulanger, Y. Petit, A. P. Revellez, C. Félix, and B. Ménaert, “Rotation of the absorption frame as a function of the electronic transition in the Nd3+:YCa₄O(BO₃)₃ monoclinic crystal,” Opt. Express18(18), 19169–19174 (2010). [CrossRef] [PubMed]
  29. J. Hölsa and M. Leskelä, “Optical study of Eu3+ luminescence in lithium rare earth borates, Li6RE(BO3)3; RE = Gd, Y,” J. Lumin.48-49, 497–500 (1991). [CrossRef]
  30. V. Jubera, J.-P. Chaminade, A. Garcia, F. Guillen, and C. Fouassier, “Luminescent properties of Eu3+-activated lithium rare earth borates and oxyborates,” J. Lumin.101(1-2), 1–10 (2003). [CrossRef]
  31. G. K. Abdullaev and K. S. Mamedov, Sov. Phys. Crystallogr.22(2), 220–222 (1997).
  32. M. Born and E. Wolf, Principles of Optics (Oxford, 1965).
  33. H. Hellwig, J. Liebertz, and L. Bohaty, “Linear optical properties of the monoclinic bismuth BiB3O6,” J. Appl. Phys.88(1), 240 (2000). [CrossRef]
  34. P. Segonds, V. Jubera, J. Debray, and B. Ménaert, private communication.
  35. B. Boulanger and J. Zyss, International Tables for Crystallography Vol. D: A. Authier Ed., International Union of Crystallography, (Kluwer, Academic Publisher, 2006), chapt. 1.7: nonlinear optical properties.
  36. P. Segonds, B. Boulanger, J. P. Fève, B. Ménaert, J. Zaccaro, G. Aka, and D. Pelenc, “Linear and nonlinear optical properties of the monoclinic Ca4YO(BO3)3 crystal,” J. Opt. Soc. Am. B21(4), 765–769 (2004). [CrossRef]
  37. M. Chavoutier, V. Jubera, P. Veber, M. Velazquez, O. Viraphong, J. Hejtmanek, R. Decourt, J. Debray, B. Menaert, P. Segonds, F. Adamietz, V. Rodriguez, I. Manek-Hönninger, A. Fargues, D. Descamps, and A. Garcia, “Thermal, optical and spectroscopic characterizations of borate laser crystals,” J. Solid State Chem.184(2), 441–446 (2011). [CrossRef]
  38. P. Segonds, B. Boulanger, L. Ferrier, B. Ménaert, and J. Zaccaro, “Refractive indices determination of a small-size nonlinear biaxial crystal by use of double-refraction measurements with a laser beam,” J. Opt. Soc. Amer. B.23(5), 852–856 (2006). [CrossRef]
  39. R. W. Boyd, Nonlinear Optics (Academic Press ELSEVIER, San Diego, 2008).
  40. S. Brasselet, V. Le Floc’h, F. Treussart, J.-F. Roch, J. Zyss, E. Botzung-Appert, and A. Ibanez, “In situ diagnostics of the crystalline nature of single organic nanocrystals by nonlinear microscopy,” Phys. Rev. Lett.92(20), 207401 (2004). [CrossRef] [PubMed]
  41. Y. Petit, S. Joly, P. Segonds, and B. Boulanger, “Recent advances in monoclinic crystal optics,” Laser Phys. Rev.: Invited Review Article (to appear in press).
  42. R. Cattoor, I. Manek-Hönninger, J.-Ch. Delagnes, Y. Petit, B. Bousquet, V. Jubera, A. Fargues, Ph. Veber, M. Velazquez, A. Garcia, and L. Canioni, “Potential of the Eu:LYB crystal as a laser material for DPSS lasers emitting at 613 nm,” Proc. SPIE8235, 82351A, 82351A–7 (2012). [CrossRef]
  43. J.-P. Fève, B. Boulanger, B. Ménaert, and O. Pacaud, “Continuous tuning of a microlaser-pumped optical parametric generator by use of a cylindrical periodically poled lithium niobate crystal,” Opt. Lett.28(12), 1028–1030 (2003). [CrossRef] [PubMed]
  44. Y. Petit, P. Segonds, B. Boulanger, and T. Taira, “Angular Quasi-Phase Matching,” Phys. Rev. A76(6), 063817 (2007). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited