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Generation of ultrashort 25-μJ pulses at 200 nm by dual broadband frequency doubling with a thin KBe2BO3F2 crystalChun Zhou, Teruto Kanai, Xiaoyang Wang, Yong Zhu, Chuangtian Chen, and Shuntaro Watanabe »View Author Affiliations
Chun Zhou,1,4,*
Teruto Kanai,3
Xiaoyang Wang,2
Yong Zhu,2
Chuangtian Chen,2
and Shuntaro Watanabe1,4
1Research Institute for Science and Technology, Tokyo University of Science, Noda, Chiba 278-8510, Japan 2Technical Institute of Physics and Chemistry, Chinese Academy of Science, P. O. Box 2711, Beijing, 100080, China 3Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan 4CREST, Japan Science and Technology Agency (JST), Chiyoda, Tokyo 102-0075, Japan *Corresponding author: czhou@rs.noda.tus.ac.jp |
Optics Express, Vol. 20, Issue 13, pp. 13684-13691 (2012)
http://dx.doi.org/10.1364/OE.20.013684
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Abstract
Ultrashort pulses with a 25-μJ output energy were generated at 200 nm by dual broadband frequency doubling with a thin KBe2BO3F2 (KBBF) crystal at 1 kHz as the fourth harmonic of a high power Ti:sapphire laser. The spectrum was broadened to a spectral width of 2.25 nm. The pulse duration of 56 fs was measured by single-shot autocorrelation with two-photon fluorescence from self-trapped excitons in a CaF2 crystal.
© 2012 OSA
OCIS Codes
(140.7090) Lasers and laser optics : Ultrafast lasers
(140.7240) Lasers and laser optics : UV, EUV, and X-ray lasers
(140.3515) Lasers and laser optics : Lasers, frequency doubled
ToC Category:
Lasers and Laser Optics
History
Original Manuscript: April 12, 2012
Revised Manuscript: May 23, 2012
Manuscript Accepted: May 24, 2012
Published: June 4, 2012
Citation
Chun Zhou, Teruto Kanai, Xiaoyang Wang, Yong Zhu, Chuangtian Chen, and Shuntaro Watanabe, "Generation of ultrashort 25-μJ pulses at 200 nm by dual broadband frequency doubling with a thin KBe2BO3F2 crystal," Opt. Express 20, 13684-13691 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-13-13684
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References
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- S. A. Slattery and D. N. Nikogosyan, “Two-photon absorption at 211 nm in fused silica, crystalline quartz and some alkali halides,” Opt. Commun.228(1-3), 127–131 (2003). [CrossRef]
- S. Mathias, L. Miaja-Avila, M. M. Murnane, H. Kapteyn, M. Aeschlimann, and M. Bauer, “Angle-resolved photoemission spectroscopy with a femtosecond high harmonic light source using a two-dimensional imaging electron analyzer,” Rev. Sci. Instrum.78(8), 083105 (2007). [CrossRef] [PubMed]
- C. G. Durfee, S. Backus, H. C. Kapteyn, and M. M. Murnane, “Intense 8-fs pulse generation in the deep ultraviolet,” Opt. Lett.24(10), 697–699 (1999). [CrossRef] [PubMed]
- A. Rundquist, C. G. Durfee, Z. Chang, C. Herne, S. Backus, M. M. Murnane, and H. C. Kapteyn, “Phase-matched generation of coherent soft X-rays,” Science280(5368), 1412–1415 (1998). [CrossRef] [PubMed]
- S. Mathias, L. Miaja-Avila, M. M. Murnane, H. Kapteyn, M. Aeschlimann, and M. Bauer, “Angle-resolved photoemission spectroscopy with a femtosecond high harmonic light source using a two-dimensional imaging electron analyzer,” Rev. Sci. Instrum.78(8), 083105 (2007). [CrossRef] [PubMed]
- M. Ghotbi, P. Trabs, and M. Beutler, “Generation of high-energy, sub-20-fs pulses in the deep ultraviolet by using spectral broadening during filamentation in argon,” Opt. Lett.36(4), 463–465 (2011). [CrossRef] [PubMed]
- M. Ghotbi, M. Beutler, and F. Noack, “Generation of 2.5 μJ vacuum ultraviolet pulses with sub-50 fs duration by noncollinear four-wave mixing in argon,” Opt. Lett.35(20), 3492–3494 (2010). [CrossRef] [PubMed]
- G. Szabó and Z. Bor, “Broadband frequency doubler for femtosecond pulses,” Appl. Phys. B50, 51–54 (1990). [CrossRef]
- R. T. Williams, J. N. Bradford, and W. L. Faust, “Short-pulse optical studies of exciton relaxation and F-center formation in NaCl, KCl, and NaBr,” Phys. Rev. B18(12), 7038–7057 (1978). [CrossRef]
- K. L. Ishikawa, K. Schiessl, E. Persson, and J. Burgdörfer, “Fine-scale oscillations in the wavelength and intensity dependence of high-order harmonic generation: Connection with channel closings,” Phys. Rev. A79(3), 033411 (2009). [CrossRef]
- A. Rundquist, C. G. Durfee, Z. Chang, C. Herne, S. Backus, M. M. Murnane, and H. C. Kapteyn, “Phase-matched generation of coherent soft X-rays,” Science280(5368), 1412–1415 (1998). [CrossRef] [PubMed]
- C. Chen, G. Wang, X. Wang, Y. Zhu, Z. Xu, T. Kanai, and S. Watanabe, “Improved sellmeier equations and phase-matching characteristics in deep-ultraviolet region of KBe2BO3F2 crystal,” IEEE J. Quantum Electron.44(7), 617–621 (2008). [CrossRef]
- T. Togashi, T. Kanai, T. Sekikawa, S. Watanabe, C. Chen, C. Zhang, Z. Xu, and J. Wang, “Generation of vacuum-ultraviolet light by an optically contacted, prism-coupled KBe2BO3F2 crystal,” Opt. Lett.28(4), 254–256 (2003). [CrossRef] [PubMed]
- C. Chen, J. Lu, T. Togashi, T. Suganuma, T. Sekikawa, S. Watanabe, Z. Xu, and J. Wang, “Second-harmonic generation from a KBe2 BO3F2 crystal in the deep ultraviolet,” Opt. Lett.27(8), 637–639 (2002). [CrossRef] [PubMed]
- T. Kiss, F. Kanetaka, T. Yokoya, T. Shimojima, K. Kanai, S. Shin, Y. Onuki, T. Togashi, C. Zhang, C. T. Chen, and S. Watanabe, “Photoemission spectroscopic evidence of gap anisotropy in an f-Electron superconductor,” Phys. Rev. Lett.94(5), 057001 (2005). [CrossRef] [PubMed]
- P. B. Corkum and F. Krausz, “Attosecond science,” Nat. Phys.3(6), 381–387 (2007). [CrossRef]
- C. G. Durfee, S. Backus, H. C. Kapteyn, and M. M. Murnane, “Intense 8-fs pulse generation in the deep ultraviolet,” Opt. Lett.24(10), 697–699 (1999). [CrossRef] [PubMed]
- A. Rundquist, C. G. Durfee, Z. Chang, C. Herne, S. Backus, M. M. Murnane, and H. C. Kapteyn, “Phase-matched generation of coherent soft X-rays,” Science280(5368), 1412–1415 (1998). [CrossRef] [PubMed]
- K. Ishizaka, T. Kiss, T. Yamamoto, Y. Ishida, T. Saitoh, M. Matsunami, R. Eguchi, T. Ohtsuki, A. Kosuge, T. Kanai, M. Nohara, H. Takagi, S. Watanabe, and S. Shin, “Femtosecond core-level photoemision spectroscopy on 1T-TaS2 using a 60-eV laser source,” Phys. Rev. B83(8), 081104 (2011). [CrossRef]
- R. T. Williams, J. N. Bradford, and W. L. Faust, “Short-pulse optical studies of exciton relaxation and F-center formation in NaCl, KCl, and NaBr,” Phys. Rev. B18(12), 7038–7057 (1978). [CrossRef]
- M. Ghotbi, P. Trabs, and M. Beutler, “Generation of high-energy, sub-20-fs pulses in the deep ultraviolet by using spectral broadening during filamentation in argon,” Opt. Lett.36(4), 463–465 (2011). [CrossRef] [PubMed]
- M. Ghotbi, M. Beutler, and F. Noack, “Generation of 2.5 μJ vacuum ultraviolet pulses with sub-50 fs duration by noncollinear four-wave mixing in argon,” Opt. Lett.35(20), 3492–3494 (2010). [CrossRef] [PubMed]
- W. H. Glenn, “Second-harmonic generation by picosecond optical pulses,” IEEE J. Quantum Electron.5(6), 284–290 (1969). [CrossRef]
- K. Hata, M. Watanabe, and S. Watanabe, “Nonlinear processes in UV optical materials at 248 nm,” Appl. Phys. B50(1), 55–59 (1990). [CrossRef]
- A. Rundquist, C. G. Durfee, Z. Chang, C. Herne, S. Backus, M. M. Murnane, and H. C. Kapteyn, “Phase-matched generation of coherent soft X-rays,” Science280(5368), 1412–1415 (1998). [CrossRef] [PubMed]
- K. Ishizaka, T. Kiss, T. Yamamoto, Y. Ishida, T. Saitoh, M. Matsunami, R. Eguchi, T. Ohtsuki, A. Kosuge, T. Kanai, M. Nohara, H. Takagi, S. Watanabe, and S. Shin, “Femtosecond core-level photoemision spectroscopy on 1T-TaS2 using a 60-eV laser source,” Phys. Rev. B83(8), 081104 (2011). [CrossRef]
- K. L. Ishikawa, K. Schiessl, E. Persson, and J. Burgdörfer, “Fine-scale oscillations in the wavelength and intensity dependence of high-order harmonic generation: Connection with channel closings,” Phys. Rev. A79(3), 033411 (2009). [CrossRef]
- K. Ishizaka, T. Kiss, T. Yamamoto, Y. Ishida, T. Saitoh, M. Matsunami, R. Eguchi, T. Ohtsuki, A. Kosuge, T. Kanai, M. Nohara, H. Takagi, S. Watanabe, and S. Shin, “Femtosecond core-level photoemision spectroscopy on 1T-TaS2 using a 60-eV laser source,” Phys. Rev. B83(8), 081104 (2011). [CrossRef]
- C. Zhou, T. Seki, T. Sukegawa, T. Kanai, J. Itatani, Y. Kobayashi, and S. Watanabe, “Large-scale, high-efficiency transmission grating for Terawatt-class Ti:sapphire lasers at 1 kHz,” Appl. Phys. Express4(7), 072701 (2011). [CrossRef]
- T. Kiss, F. Kanetaka, T. Yokoya, T. Shimojima, K. Kanai, S. Shin, Y. Onuki, T. Togashi, C. Zhang, C. T. Chen, and S. Watanabe, “Photoemission spectroscopic evidence of gap anisotropy in an f-Electron superconductor,” Phys. Rev. Lett.94(5), 057001 (2005). [CrossRef] [PubMed]
- K. Ishizaka, T. Kiss, T. Yamamoto, Y. Ishida, T. Saitoh, M. Matsunami, R. Eguchi, T. Ohtsuki, A. Kosuge, T. Kanai, M. Nohara, H. Takagi, S. Watanabe, and S. Shin, “Femtosecond core-level photoemision spectroscopy on 1T-TaS2 using a 60-eV laser source,” Phys. Rev. B83(8), 081104 (2011). [CrossRef]
- C. Zhou, T. Seki, T. Sukegawa, T. Kanai, J. Itatani, Y. Kobayashi, and S. Watanabe, “Large-scale, high-efficiency transmission grating for Terawatt-class Ti:sapphire lasers at 1 kHz,” Appl. Phys. Express4(7), 072701 (2011). [CrossRef]
- C. Chen, G. Wang, X. Wang, Y. Zhu, Z. Xu, T. Kanai, and S. Watanabe, “Improved sellmeier equations and phase-matching characteristics in deep-ultraviolet region of KBe2BO3F2 crystal,” IEEE J. Quantum Electron.44(7), 617–621 (2008). [CrossRef]
- T. Kanai, X. Zhou, T. Liu, A. Kosuge, T. Sekikawa, and S. Watanabe, “Generation of terawatt 10-fs blue pulses by compensation for pulse-front distortion in broadband frequency doubling,” Opt. Lett.29(24), 2929–2931 (2004). [CrossRef] [PubMed]
- T. Sekikawa, A. Kosuge, T. Kanai, and S. Watanabe, “Nonlinear optics in the extreme ultraviolet,” Nature432(7017), 605–608 (2004). [CrossRef] [PubMed]
- T. Kanai, X. Zhou, T. Sekikawa, S. Watanabe, and T. Togashi, “Generation of subterawatt sub-10-fs blue pulses at 1-5 kHz by broadband frequency doubling,” Opt. Lett.28(16), 1484–1486 (2003). [CrossRef] [PubMed]
- T. Togashi, T. Kanai, T. Sekikawa, S. Watanabe, C. Chen, C. Zhang, Z. Xu, and J. Wang, “Generation of vacuum-ultraviolet light by an optically contacted, prism-coupled KBe2BO3F2 crystal,” Opt. Lett.28(4), 254–256 (2003). [CrossRef] [PubMed]
- T. Kiss, F. Kanetaka, T. Yokoya, T. Shimojima, K. Kanai, S. Shin, Y. Onuki, T. Togashi, C. Zhang, C. T. Chen, and S. Watanabe, “Photoemission spectroscopic evidence of gap anisotropy in an f-Electron superconductor,” Phys. Rev. Lett.94(5), 057001 (2005). [CrossRef] [PubMed]
- S. Mathias, L. Miaja-Avila, M. M. Murnane, H. Kapteyn, M. Aeschlimann, and M. Bauer, “Angle-resolved photoemission spectroscopy with a femtosecond high harmonic light source using a two-dimensional imaging electron analyzer,” Rev. Sci. Instrum.78(8), 083105 (2007). [CrossRef] [PubMed]
- C. G. Durfee, S. Backus, H. C. Kapteyn, and M. M. Murnane, “Intense 8-fs pulse generation in the deep ultraviolet,” Opt. Lett.24(10), 697–699 (1999). [CrossRef] [PubMed]
- A. Rundquist, C. G. Durfee, Z. Chang, C. Herne, S. Backus, M. M. Murnane, and H. C. Kapteyn, “Phase-matched generation of coherent soft X-rays,” Science280(5368), 1412–1415 (1998). [CrossRef] [PubMed]
- K. Ishizaka, T. Kiss, T. Yamamoto, Y. Ishida, T. Saitoh, M. Matsunami, R. Eguchi, T. Ohtsuki, A. Kosuge, T. Kanai, M. Nohara, H. Takagi, S. Watanabe, and S. Shin, “Femtosecond core-level photoemision spectroscopy on 1T-TaS2 using a 60-eV laser source,” Phys. Rev. B83(8), 081104 (2011). [CrossRef]
- T. Kiss, F. Kanetaka, T. Yokoya, T. Shimojima, K. Kanai, S. Shin, Y. Onuki, T. Togashi, C. Zhang, C. T. Chen, and S. Watanabe, “Photoemission spectroscopic evidence of gap anisotropy in an f-Electron superconductor,” Phys. Rev. Lett.94(5), 057001 (2005). [CrossRef] [PubMed]
- C. Zhou, T. Seki, T. Sukegawa, T. Kanai, J. Itatani, Y. Kobayashi, and S. Watanabe, “Large-scale, high-efficiency transmission grating for Terawatt-class Ti:sapphire lasers at 1 kHz,” Appl. Phys. Express4(7), 072701 (2011). [CrossRef]
- K. Ishizaka, T. Kiss, T. Yamamoto, Y. Ishida, T. Saitoh, M. Matsunami, R. Eguchi, T. Ohtsuki, A. Kosuge, T. Kanai, M. Nohara, H. Takagi, S. Watanabe, and S. Shin, “Femtosecond core-level photoemision spectroscopy on 1T-TaS2 using a 60-eV laser source,” Phys. Rev. B83(8), 081104 (2011). [CrossRef]
- T. Sekikawa, A. Kosuge, T. Kanai, and S. Watanabe, “Nonlinear optics in the extreme ultraviolet,” Nature432(7017), 605–608 (2004). [CrossRef] [PubMed]
- T. Kanai, X. Zhou, T. Liu, A. Kosuge, T. Sekikawa, and S. Watanabe, “Generation of terawatt 10-fs blue pulses by compensation for pulse-front distortion in broadband frequency doubling,” Opt. Lett.29(24), 2929–2931 (2004). [CrossRef] [PubMed]
- P. B. Corkum and F. Krausz, “Attosecond science,” Nat. Phys.3(6), 381–387 (2007). [CrossRef]
- O. E. Martinez, “Achromatic phase matching for second harmonic generation of femtosecond pulses,” IEEE J. Quantum Electron.25(12), 2464–2468 (1989). [CrossRef]
- S. Mathias, L. Miaja-Avila, M. M. Murnane, H. Kapteyn, M. Aeschlimann, and M. Bauer, “Angle-resolved photoemission spectroscopy with a femtosecond high harmonic light source using a two-dimensional imaging electron analyzer,” Rev. Sci. Instrum.78(8), 083105 (2007). [CrossRef] [PubMed]
- K. Ishizaka, T. Kiss, T. Yamamoto, Y. Ishida, T. Saitoh, M. Matsunami, R. Eguchi, T. Ohtsuki, A. Kosuge, T. Kanai, M. Nohara, H. Takagi, S. Watanabe, and S. Shin, “Femtosecond core-level photoemision spectroscopy on 1T-TaS2 using a 60-eV laser source,” Phys. Rev. B83(8), 081104 (2011). [CrossRef]
- S. Mathias, L. Miaja-Avila, M. M. Murnane, H. Kapteyn, M. Aeschlimann, and M. Bauer, “Angle-resolved photoemission spectroscopy with a femtosecond high harmonic light source using a two-dimensional imaging electron analyzer,” Rev. Sci. Instrum.78(8), 083105 (2007). [CrossRef] [PubMed]
- R. C. Miller, “Second harmonic generation with a broadband optical maser,” Phys. Lett.26A, 177–178 (1968).
- S. Mathias, L. Miaja-Avila, M. M. Murnane, H. Kapteyn, M. Aeschlimann, and M. Bauer, “Angle-resolved photoemission spectroscopy with a femtosecond high harmonic light source using a two-dimensional imaging electron analyzer,” Rev. Sci. Instrum.78(8), 083105 (2007). [CrossRef] [PubMed]
- C. G. Durfee, S. Backus, H. C. Kapteyn, and M. M. Murnane, “Intense 8-fs pulse generation in the deep ultraviolet,” Opt. Lett.24(10), 697–699 (1999). [CrossRef] [PubMed]
- A. Rundquist, C. G. Durfee, Z. Chang, C. Herne, S. Backus, M. M. Murnane, and H. C. Kapteyn, “Phase-matched generation of coherent soft X-rays,” Science280(5368), 1412–1415 (1998). [CrossRef] [PubMed]
- E. Takahashi, Y. Nabekawa, and K. Midorikawa, “Generation of 10- microJ coherent extreme-ultraviolet light by use of high-order harmonics,” Opt. Lett.27(21), 1920–1922 (2002). [CrossRef] [PubMed]
- Y. Nabekawa, Y. Kuramoto, T. Togashi, T. Sekikawa, and S. Watanabe, “Generation of 0.66-TW pulses at 1 kHz by a Ti:sapphire laser,” Opt. Lett.23(17), 1384–1386 (1998). [CrossRef] [PubMed]
- S. A. Slattery and D. N. Nikogosyan, “Two-photon absorption at 211 nm in fused silica, crystalline quartz and some alkali halides,” Opt. Commun.228(1-3), 127–131 (2003). [CrossRef]
- M. Ghotbi, M. Beutler, and F. Noack, “Generation of 2.5 μJ vacuum ultraviolet pulses with sub-50 fs duration by noncollinear four-wave mixing in argon,” Opt. Lett.35(20), 3492–3494 (2010). [CrossRef] [PubMed]
- F. Seifert, J. Ringling, F. Noack, V. Petrov, and O. Kittelmann, “Generation of tunable femtosecond pulses to as low as 172.7 nm by sum-frequency mixing in lithium triborate,” Opt. Lett.19(19), 1538–1540 (1994). [CrossRef] [PubMed]
- K. Ishizaka, T. Kiss, T. Yamamoto, Y. Ishida, T. Saitoh, M. Matsunami, R. Eguchi, T. Ohtsuki, A. Kosuge, T. Kanai, M. Nohara, H. Takagi, S. Watanabe, and S. Shin, “Femtosecond core-level photoemision spectroscopy on 1T-TaS2 using a 60-eV laser source,” Phys. Rev. B83(8), 081104 (2011). [CrossRef]
- K. Ishizaka, T. Kiss, T. Yamamoto, Y. Ishida, T. Saitoh, M. Matsunami, R. Eguchi, T. Ohtsuki, A. Kosuge, T. Kanai, M. Nohara, H. Takagi, S. Watanabe, and S. Shin, “Femtosecond core-level photoemision spectroscopy on 1T-TaS2 using a 60-eV laser source,” Phys. Rev. B83(8), 081104 (2011). [CrossRef]
- T. Kiss, F. Kanetaka, T. Yokoya, T. Shimojima, K. Kanai, S. Shin, Y. Onuki, T. Togashi, C. Zhang, C. T. Chen, and S. Watanabe, “Photoemission spectroscopic evidence of gap anisotropy in an f-Electron superconductor,” Phys. Rev. Lett.94(5), 057001 (2005). [CrossRef] [PubMed]
- K. L. Ishikawa, K. Schiessl, E. Persson, and J. Burgdörfer, “Fine-scale oscillations in the wavelength and intensity dependence of high-order harmonic generation: Connection with channel closings,” Phys. Rev. A79(3), 033411 (2009). [CrossRef]
- A. Rundquist, C. G. Durfee, Z. Chang, C. Herne, S. Backus, M. M. Murnane, and H. C. Kapteyn, “Phase-matched generation of coherent soft X-rays,” Science280(5368), 1412–1415 (1998). [CrossRef] [PubMed]
- K. Ishizaka, T. Kiss, T. Yamamoto, Y. Ishida, T. Saitoh, M. Matsunami, R. Eguchi, T. Ohtsuki, A. Kosuge, T. Kanai, M. Nohara, H. Takagi, S. Watanabe, and S. Shin, “Femtosecond core-level photoemision spectroscopy on 1T-TaS2 using a 60-eV laser source,” Phys. Rev. B83(8), 081104 (2011). [CrossRef]
- K. L. Ishikawa, K. Schiessl, E. Persson, and J. Burgdörfer, “Fine-scale oscillations in the wavelength and intensity dependence of high-order harmonic generation: Connection with channel closings,” Phys. Rev. A79(3), 033411 (2009). [CrossRef]
- C. Zhou, T. Seki, T. Sukegawa, T. Kanai, J. Itatani, Y. Kobayashi, and S. Watanabe, “Large-scale, high-efficiency transmission grating for Terawatt-class Ti:sapphire lasers at 1 kHz,” Appl. Phys. Express4(7), 072701 (2011). [CrossRef]
- T. Kanai, X. Zhou, T. Liu, A. Kosuge, T. Sekikawa, and S. Watanabe, “Generation of terawatt 10-fs blue pulses by compensation for pulse-front distortion in broadband frequency doubling,” Opt. Lett.29(24), 2929–2931 (2004). [CrossRef] [PubMed]
- T. Sekikawa, A. Kosuge, T. Kanai, and S. Watanabe, “Nonlinear optics in the extreme ultraviolet,” Nature432(7017), 605–608 (2004). [CrossRef] [PubMed]
- T. Kanai, X. Zhou, T. Sekikawa, S. Watanabe, and T. Togashi, “Generation of subterawatt sub-10-fs blue pulses at 1-5 kHz by broadband frequency doubling,” Opt. Lett.28(16), 1484–1486 (2003). [CrossRef] [PubMed]
- T. Togashi, T. Kanai, T. Sekikawa, S. Watanabe, C. Chen, C. Zhang, Z. Xu, and J. Wang, “Generation of vacuum-ultraviolet light by an optically contacted, prism-coupled KBe2BO3F2 crystal,” Opt. Lett.28(4), 254–256 (2003). [CrossRef] [PubMed]
- C. Chen, J. Lu, T. Togashi, T. Suganuma, T. Sekikawa, S. Watanabe, Z. Xu, and J. Wang, “Second-harmonic generation from a KBe2 BO3F2 crystal in the deep ultraviolet,” Opt. Lett.27(8), 637–639 (2002). [CrossRef] [PubMed]
- D. Yoshitomi, T. Shimizu, T. Sekikawa, and S. Watanabe, “Generation and focusing of submilliwatt-average-power 50-nm pulses by the fifth harmonic of a KrF laser,” Opt. Lett.27(24), 2170–2172 (2002). [CrossRef] [PubMed]
- Y. Nabekawa, Y. Kuramoto, T. Togashi, T. Sekikawa, and S. Watanabe, “Generation of 0.66-TW pulses at 1 kHz by a Ti:sapphire laser,” Opt. Lett.23(17), 1384–1386 (1998). [CrossRef] [PubMed]
- T. Kiss, F. Kanetaka, T. Yokoya, T. Shimojima, K. Kanai, S. Shin, Y. Onuki, T. Togashi, C. Zhang, C. T. Chen, and S. Watanabe, “Photoemission spectroscopic evidence of gap anisotropy in an f-Electron superconductor,” Phys. Rev. Lett.94(5), 057001 (2005). [CrossRef] [PubMed]
- K. Ishizaka, T. Kiss, T. Yamamoto, Y. Ishida, T. Saitoh, M. Matsunami, R. Eguchi, T. Ohtsuki, A. Kosuge, T. Kanai, M. Nohara, H. Takagi, S. Watanabe, and S. Shin, “Femtosecond core-level photoemision spectroscopy on 1T-TaS2 using a 60-eV laser source,” Phys. Rev. B83(8), 081104 (2011). [CrossRef]
- T. Kiss, F. Kanetaka, T. Yokoya, T. Shimojima, K. Kanai, S. Shin, Y. Onuki, T. Togashi, C. Zhang, C. T. Chen, and S. Watanabe, “Photoemission spectroscopic evidence of gap anisotropy in an f-Electron superconductor,” Phys. Rev. Lett.94(5), 057001 (2005). [CrossRef] [PubMed]
- S. A. Slattery and D. N. Nikogosyan, “Two-photon absorption at 211 nm in fused silica, crystalline quartz and some alkali halides,” Opt. Commun.228(1-3), 127–131 (2003). [CrossRef]
- C. Zhou, T. Seki, T. Sukegawa, T. Kanai, J. Itatani, Y. Kobayashi, and S. Watanabe, “Large-scale, high-efficiency transmission grating for Terawatt-class Ti:sapphire lasers at 1 kHz,” Appl. Phys. Express4(7), 072701 (2011). [CrossRef]
- G. Szabó and Z. Bor, “Broadband frequency doubler for femtosecond pulses,” Appl. Phys. B50, 51–54 (1990). [CrossRef]
- K. Ishizaka, T. Kiss, T. Yamamoto, Y. Ishida, T. Saitoh, M. Matsunami, R. Eguchi, T. Ohtsuki, A. Kosuge, T. Kanai, M. Nohara, H. Takagi, S. Watanabe, and S. Shin, “Femtosecond core-level photoemision spectroscopy on 1T-TaS2 using a 60-eV laser source,” Phys. Rev. B83(8), 081104 (2011). [CrossRef]
- T. Kiss, F. Kanetaka, T. Yokoya, T. Shimojima, K. Kanai, S. Shin, Y. Onuki, T. Togashi, C. Zhang, C. T. Chen, and S. Watanabe, “Photoemission spectroscopic evidence of gap anisotropy in an f-Electron superconductor,” Phys. Rev. Lett.94(5), 057001 (2005). [CrossRef] [PubMed]
- T. Kanai, X. Zhou, T. Sekikawa, S. Watanabe, and T. Togashi, “Generation of subterawatt sub-10-fs blue pulses at 1-5 kHz by broadband frequency doubling,” Opt. Lett.28(16), 1484–1486 (2003). [CrossRef] [PubMed]
- T. Togashi, T. Kanai, T. Sekikawa, S. Watanabe, C. Chen, C. Zhang, Z. Xu, and J. Wang, “Generation of vacuum-ultraviolet light by an optically contacted, prism-coupled KBe2BO3F2 crystal,” Opt. Lett.28(4), 254–256 (2003). [CrossRef] [PubMed]
- C. Chen, J. Lu, T. Togashi, T. Suganuma, T. Sekikawa, S. Watanabe, Z. Xu, and J. Wang, “Second-harmonic generation from a KBe2 BO3F2 crystal in the deep ultraviolet,” Opt. Lett.27(8), 637–639 (2002). [CrossRef] [PubMed]
- Y. Nabekawa, Y. Kuramoto, T. Togashi, T. Sekikawa, and S. Watanabe, “Generation of 0.66-TW pulses at 1 kHz by a Ti:sapphire laser,” Opt. Lett.23(17), 1384–1386 (1998). [CrossRef] [PubMed]
- C. Chen, G. Wang, X. Wang, Y. Zhu, Z. Xu, T. Kanai, and S. Watanabe, “Improved sellmeier equations and phase-matching characteristics in deep-ultraviolet region of KBe2BO3F2 crystal,” IEEE J. Quantum Electron.44(7), 617–621 (2008). [CrossRef]
- T. Togashi, T. Kanai, T. Sekikawa, S. Watanabe, C. Chen, C. Zhang, Z. Xu, and J. Wang, “Generation of vacuum-ultraviolet light by an optically contacted, prism-coupled KBe2BO3F2 crystal,” Opt. Lett.28(4), 254–256 (2003). [CrossRef] [PubMed]
- C. Chen, J. Lu, T. Togashi, T. Suganuma, T. Sekikawa, S. Watanabe, Z. Xu, and J. Wang, “Second-harmonic generation from a KBe2 BO3F2 crystal in the deep ultraviolet,” Opt. Lett.27(8), 637–639 (2002). [CrossRef] [PubMed]
- C. Chen, G. Wang, X. Wang, Y. Zhu, Z. Xu, T. Kanai, and S. Watanabe, “Improved sellmeier equations and phase-matching characteristics in deep-ultraviolet region of KBe2BO3F2 crystal,” IEEE J. Quantum Electron.44(7), 617–621 (2008). [CrossRef]
- K. Hata, M. Watanabe, and S. Watanabe, “Nonlinear processes in UV optical materials at 248 nm,” Appl. Phys. B50(1), 55–59 (1990). [CrossRef]
- N. Sarukura, M. Watanabe, A. Endoh, and S. Watanabe, “Single-shot measurement of subpicosecond KrF pulse width by three-photon fluorescence of the XeF visible transition,” Opt. Lett.13(11), 996–998 (1988). [CrossRef] [PubMed]
- C. Zhou, T. Seki, T. Sukegawa, T. Kanai, J. Itatani, Y. Kobayashi, and S. Watanabe, “Large-scale, high-efficiency transmission grating for Terawatt-class Ti:sapphire lasers at 1 kHz,” Appl. Phys. Express4(7), 072701 (2011). [CrossRef]
- K. Ishizaka, T. Kiss, T. Yamamoto, Y. Ishida, T. Saitoh, M. Matsunami, R. Eguchi, T. Ohtsuki, A. Kosuge, T. Kanai, M. Nohara, H. Takagi, S. Watanabe, and S. Shin, “Femtosecond core-level photoemision spectroscopy on 1T-TaS2 using a 60-eV laser source,” Phys. Rev. B83(8), 081104 (2011). [CrossRef]
- C. Chen, G. Wang, X. Wang, Y. Zhu, Z. Xu, T. Kanai, and S. Watanabe, “Improved sellmeier equations and phase-matching characteristics in deep-ultraviolet region of KBe2BO3F2 crystal,” IEEE J. Quantum Electron.44(7), 617–621 (2008). [CrossRef]
- T. Kiss, F. Kanetaka, T. Yokoya, T. Shimojima, K. Kanai, S. Shin, Y. Onuki, T. Togashi, C. Zhang, C. T. Chen, and S. Watanabe, “Photoemission spectroscopic evidence of gap anisotropy in an f-Electron superconductor,” Phys. Rev. Lett.94(5), 057001 (2005). [CrossRef] [PubMed]
- T. Sekikawa, A. Kosuge, T. Kanai, and S. Watanabe, “Nonlinear optics in the extreme ultraviolet,” Nature432(7017), 605–608 (2004). [CrossRef] [PubMed]
- T. Kanai, X. Zhou, T. Liu, A. Kosuge, T. Sekikawa, and S. Watanabe, “Generation of terawatt 10-fs blue pulses by compensation for pulse-front distortion in broadband frequency doubling,” Opt. Lett.29(24), 2929–2931 (2004). [CrossRef] [PubMed]
- T. Kanai, X. Zhou, T. Sekikawa, S. Watanabe, and T. Togashi, “Generation of subterawatt sub-10-fs blue pulses at 1-5 kHz by broadband frequency doubling,” Opt. Lett.28(16), 1484–1486 (2003). [CrossRef] [PubMed]
- T. Togashi, T. Kanai, T. Sekikawa, S. Watanabe, C. Chen, C. Zhang, Z. Xu, and J. Wang, “Generation of vacuum-ultraviolet light by an optically contacted, prism-coupled KBe2BO3F2 crystal,” Opt. Lett.28(4), 254–256 (2003). [CrossRef] [PubMed]
- C. Chen, J. Lu, T. Togashi, T. Suganuma, T. Sekikawa, S. Watanabe, Z. Xu, and J. Wang, “Second-harmonic generation from a KBe2 BO3F2 crystal in the deep ultraviolet,” Opt. Lett.27(8), 637–639 (2002). [CrossRef] [PubMed]
- D. Yoshitomi, T. Shimizu, T. Sekikawa, and S. Watanabe, “Generation and focusing of submilliwatt-average-power 50-nm pulses by the fifth harmonic of a KrF laser,” Opt. Lett.27(24), 2170–2172 (2002). [CrossRef] [PubMed]
- Y. Nabekawa, Y. Kuramoto, T. Togashi, T. Sekikawa, and S. Watanabe, “Generation of 0.66-TW pulses at 1 kHz by a Ti:sapphire laser,” Opt. Lett.23(17), 1384–1386 (1998). [CrossRef] [PubMed]
- K. Hata, M. Watanabe, and S. Watanabe, “Nonlinear processes in UV optical materials at 248 nm,” Appl. Phys. B50(1), 55–59 (1990). [CrossRef]
- N. Sarukura, M. Watanabe, A. Endoh, and S. Watanabe, “Single-shot measurement of subpicosecond KrF pulse width by three-photon fluorescence of the XeF visible transition,” Opt. Lett.13(11), 996–998 (1988). [CrossRef] [PubMed]
- R. T. Williams, J. N. Bradford, and W. L. Faust, “Short-pulse optical studies of exciton relaxation and F-center formation in NaCl, KCl, and NaBr,” Phys. Rev. B18(12), 7038–7057 (1978). [CrossRef]
- C. Chen, G. Wang, X. Wang, Y. Zhu, Z. Xu, T. Kanai, and S. Watanabe, “Improved sellmeier equations and phase-matching characteristics in deep-ultraviolet region of KBe2BO3F2 crystal,” IEEE J. Quantum Electron.44(7), 617–621 (2008). [CrossRef]
- T. Togashi, T. Kanai, T. Sekikawa, S. Watanabe, C. Chen, C. Zhang, Z. Xu, and J. Wang, “Generation of vacuum-ultraviolet light by an optically contacted, prism-coupled KBe2BO3F2 crystal,” Opt. Lett.28(4), 254–256 (2003). [CrossRef] [PubMed]
- C. Chen, J. Lu, T. Togashi, T. Suganuma, T. Sekikawa, S. Watanabe, Z. Xu, and J. Wang, “Second-harmonic generation from a KBe2 BO3F2 crystal in the deep ultraviolet,” Opt. Lett.27(8), 637–639 (2002). [CrossRef] [PubMed]
- K. Ishizaka, T. Kiss, T. Yamamoto, Y. Ishida, T. Saitoh, M. Matsunami, R. Eguchi, T. Ohtsuki, A. Kosuge, T. Kanai, M. Nohara, H. Takagi, S. Watanabe, and S. Shin, “Femtosecond core-level photoemision spectroscopy on 1T-TaS2 using a 60-eV laser source,” Phys. Rev. B83(8), 081104 (2011). [CrossRef]
- T. Kiss, F. Kanetaka, T. Yokoya, T. Shimojima, K. Kanai, S. Shin, Y. Onuki, T. Togashi, C. Zhang, C. T. Chen, and S. Watanabe, “Photoemission spectroscopic evidence of gap anisotropy in an f-Electron superconductor,” Phys. Rev. Lett.94(5), 057001 (2005). [CrossRef] [PubMed]
- T. Kiss, F. Kanetaka, T. Yokoya, T. Shimojima, K. Kanai, S. Shin, Y. Onuki, T. Togashi, C. Zhang, C. T. Chen, and S. Watanabe, “Photoemission spectroscopic evidence of gap anisotropy in an f-Electron superconductor,” Phys. Rev. Lett.94(5), 057001 (2005). [CrossRef] [PubMed]
- T. Togashi, T. Kanai, T. Sekikawa, S. Watanabe, C. Chen, C. Zhang, Z. Xu, and J. Wang, “Generation of vacuum-ultraviolet light by an optically contacted, prism-coupled KBe2BO3F2 crystal,” Opt. Lett.28(4), 254–256 (2003). [CrossRef] [PubMed]
- C. Zhou, T. Seki, T. Sukegawa, T. Kanai, J. Itatani, Y. Kobayashi, and S. Watanabe, “Large-scale, high-efficiency transmission grating for Terawatt-class Ti:sapphire lasers at 1 kHz,” Appl. Phys. Express4(7), 072701 (2011). [CrossRef]
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- T. Kanai, X. Zhou, T. Sekikawa, S. Watanabe, and T. Togashi, “Generation of subterawatt sub-10-fs blue pulses at 1-5 kHz by broadband frequency doubling,” Opt. Lett.28(16), 1484–1486 (2003). [CrossRef] [PubMed]
- C. Chen, G. Wang, X. Wang, Y. Zhu, Z. Xu, T. Kanai, and S. Watanabe, “Improved sellmeier equations and phase-matching characteristics in deep-ultraviolet region of KBe2BO3F2 crystal,” IEEE J. Quantum Electron.44(7), 617–621 (2008). [CrossRef]
Appl. Phys. B
- G. Szabó and Z. Bor, “Broadband frequency doubler for femtosecond pulses,” Appl. Phys. B50, 51–54 (1990). [CrossRef]
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Appl. Phys. Express
- C. Zhou, T. Seki, T. Sukegawa, T. Kanai, J. Itatani, Y. Kobayashi, and S. Watanabe, “Large-scale, high-efficiency transmission grating for Terawatt-class Ti:sapphire lasers at 1 kHz,” Appl. Phys. Express4(7), 072701 (2011). [CrossRef]
IEEE J. Quantum Electron.
- C. Chen, G. Wang, X. Wang, Y. Zhu, Z. Xu, T. Kanai, and S. Watanabe, “Improved sellmeier equations and phase-matching characteristics in deep-ultraviolet region of KBe2BO3F2 crystal,” IEEE J. Quantum Electron.44(7), 617–621 (2008). [CrossRef]
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Nat. Phys.
- P. B. Corkum and F. Krausz, “Attosecond science,” Nat. Phys.3(6), 381–387 (2007). [CrossRef]
Nature
- T. Sekikawa, A. Kosuge, T. Kanai, and S. Watanabe, “Nonlinear optics in the extreme ultraviolet,” Nature432(7017), 605–608 (2004). [CrossRef] [PubMed]
Opt. Commun.
- S. A. Slattery and D. N. Nikogosyan, “Two-photon absorption at 211 nm in fused silica, crystalline quartz and some alkali halides,” Opt. Commun.228(1-3), 127–131 (2003). [CrossRef]
Opt. Lett.
- C. Chen, J. Lu, T. Togashi, T. Suganuma, T. Sekikawa, S. Watanabe, Z. Xu, and J. Wang, “Second-harmonic generation from a KBe2 BO3F2 crystal in the deep ultraviolet,” Opt. Lett.27(8), 637–639 (2002). [CrossRef] [PubMed]
- T. Togashi, T. Kanai, T. Sekikawa, S. Watanabe, C. Chen, C. Zhang, Z. Xu, and J. Wang, “Generation of vacuum-ultraviolet light by an optically contacted, prism-coupled KBe2BO3F2 crystal,” Opt. Lett.28(4), 254–256 (2003). [CrossRef] [PubMed]
- Y. Nabekawa, Y. Kuramoto, T. Togashi, T. Sekikawa, and S. Watanabe, “Generation of 0.66-TW pulses at 1 kHz by a Ti:sapphire laser,” Opt. Lett.23(17), 1384–1386 (1998). [CrossRef] [PubMed]
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- T. Kanai, X. Zhou, T. Liu, A. Kosuge, T. Sekikawa, and S. Watanabe, “Generation of terawatt 10-fs blue pulses by compensation for pulse-front distortion in broadband frequency doubling,” Opt. Lett.29(24), 2929–2931 (2004). [CrossRef] [PubMed]
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Phys. Lett.
- R. C. Miller, “Second harmonic generation with a broadband optical maser,” Phys. Lett.26A, 177–178 (1968).
Phys. Rev. A
- K. L. Ishikawa, K. Schiessl, E. Persson, and J. Burgdörfer, “Fine-scale oscillations in the wavelength and intensity dependence of high-order harmonic generation: Connection with channel closings,” Phys. Rev. A79(3), 033411 (2009). [CrossRef]
Phys. Rev. B
- K. Ishizaka, T. Kiss, T. Yamamoto, Y. Ishida, T. Saitoh, M. Matsunami, R. Eguchi, T. Ohtsuki, A. Kosuge, T. Kanai, M. Nohara, H. Takagi, S. Watanabe, and S. Shin, “Femtosecond core-level photoemision spectroscopy on 1T-TaS2 using a 60-eV laser source,” Phys. Rev. B83(8), 081104 (2011). [CrossRef]
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Phys. Rev. Lett.
- T. Kiss, F. Kanetaka, T. Yokoya, T. Shimojima, K. Kanai, S. Shin, Y. Onuki, T. Togashi, C. Zhang, C. T. Chen, and S. Watanabe, “Photoemission spectroscopic evidence of gap anisotropy in an f-Electron superconductor,” Phys. Rev. Lett.94(5), 057001 (2005). [CrossRef] [PubMed]
Rev. Sci. Instrum.
- S. Mathias, L. Miaja-Avila, M. M. Murnane, H. Kapteyn, M. Aeschlimann, and M. Bauer, “Angle-resolved photoemission spectroscopy with a femtosecond high harmonic light source using a two-dimensional imaging electron analyzer,” Rev. Sci. Instrum.78(8), 083105 (2007). [CrossRef] [PubMed]
Science
- A. Rundquist, C. G. Durfee, Z. Chang, C. Herne, S. Backus, M. M. Murnane, and H. C. Kapteyn, “Phase-matched generation of coherent soft X-rays,” Science280(5368), 1412–1415 (1998). [CrossRef] [PubMed]
2011, Ishizaka, Phys. Rev. B
- K. Ishizaka, T. Kiss, T. Yamamoto, Y. Ishida, T. Saitoh, M. Matsunami, R. Eguchi, T. Ohtsuki, A. Kosuge, T. Kanai, M. Nohara, H. Takagi, S. Watanabe, and S. Shin, “Femtosecond core-level photoemision spectroscopy on 1T-TaS2 using a 60-eV laser source,” Phys. Rev. B83(8), 081104 (2011). [CrossRef]
- C. Zhou, T. Seki, T. Sukegawa, T. Kanai, J. Itatani, Y. Kobayashi, and S. Watanabe, “Large-scale, high-efficiency transmission grating for Terawatt-class Ti:sapphire lasers at 1 kHz,” Appl. Phys. Express4(7), 072701 (2011). [CrossRef]
- K. L. Ishikawa, K. Schiessl, E. Persson, and J. Burgdörfer, “Fine-scale oscillations in the wavelength and intensity dependence of high-order harmonic generation: Connection with channel closings,” Phys. Rev. A79(3), 033411 (2009). [CrossRef]
- C. Chen, G. Wang, X. Wang, Y. Zhu, Z. Xu, T. Kanai, and S. Watanabe, “Improved sellmeier equations and phase-matching characteristics in deep-ultraviolet region of KBe2BO3F2 crystal,” IEEE J. Quantum Electron.44(7), 617–621 (2008). [CrossRef]
- P. B. Corkum and F. Krausz, “Attosecond science,” Nat. Phys.3(6), 381–387 (2007). [CrossRef]
- S. Mathias, L. Miaja-Avila, M. M. Murnane, H. Kapteyn, M. Aeschlimann, and M. Bauer, “Angle-resolved photoemission spectroscopy with a femtosecond high harmonic light source using a two-dimensional imaging electron analyzer,” Rev. Sci. Instrum.78(8), 083105 (2007). [CrossRef] [PubMed]
- T. Kiss, F. Kanetaka, T. Yokoya, T. Shimojima, K. Kanai, S. Shin, Y. Onuki, T. Togashi, C. Zhang, C. T. Chen, and S. Watanabe, “Photoemission spectroscopic evidence of gap anisotropy in an f-Electron superconductor,” Phys. Rev. Lett.94(5), 057001 (2005). [CrossRef] [PubMed]
- T. Sekikawa, A. Kosuge, T. Kanai, and S. Watanabe, “Nonlinear optics in the extreme ultraviolet,” Nature432(7017), 605–608 (2004). [CrossRef] [PubMed]
- S. A. Slattery and D. N. Nikogosyan, “Two-photon absorption at 211 nm in fused silica, crystalline quartz and some alkali halides,” Opt. Commun.228(1-3), 127–131 (2003). [CrossRef]
- A. Rundquist, C. G. Durfee, Z. Chang, C. Herne, S. Backus, M. M. Murnane, and H. C. Kapteyn, “Phase-matched generation of coherent soft X-rays,” Science280(5368), 1412–1415 (1998). [CrossRef] [PubMed]
- G. Szabó and Z. Bor, “Broadband frequency doubler for femtosecond pulses,” Appl. Phys. B50, 51–54 (1990). [CrossRef]
- K. Hata, M. Watanabe, and S. Watanabe, “Nonlinear processes in UV optical materials at 248 nm,” Appl. Phys. B50(1), 55–59 (1990). [CrossRef]
- O. E. Martinez, “Achromatic phase matching for second harmonic generation of femtosecond pulses,” IEEE J. Quantum Electron.25(12), 2464–2468 (1989). [CrossRef]
- R. T. Williams, J. N. Bradford, and W. L. Faust, “Short-pulse optical studies of exciton relaxation and F-center formation in NaCl, KCl, and NaBr,” Phys. Rev. B18(12), 7038–7057 (1978). [CrossRef]
- W. H. Glenn, “Second-harmonic generation by picosecond optical pulses,” IEEE J. Quantum Electron.5(6), 284–290 (1969). [CrossRef]
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