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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 7 — Mar. 31, 2008
  • pp: 4895–4900

Twofold co-ordinated Ge defects induced by gamma-ray irradiation in Ge-doped SiO2

A. Alessi, S. Agnello, F. M. Gelardi, S. Grandi, A. Magistris, and R. Boscaino  »View Author Affiliations


Optics Express, Vol. 16, Issue 7, pp. 4895-4900 (2008)
http://dx.doi.org/10.1364/OE.16.004895


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Abstract

We report an experimental study by photoluminescence, optical absorption and Electron Paramagnetic Resonance measurements on the effects of exposure of Ge-doped amorphous SiO2 to λ ray radiation at room temperature. We have evidenced that irradiation at doses of the order of 1 MGy is able to generate Ge-related defects, recognizable from their optical properties as twofold coordinated Ge centers. Until now, such centers, responsible for photosensitivity of Ge-doped SiO2, have been induced only in synthesis procedures of materials. The found result evidences a role played by λ radiation in generating photosensitive defects and could furnish a novel basis for photosensitive pattern writing through ionizing radiation.

© 2008 Optical Society of America

OCIS Codes
(160.2220) Materials : Defect-center materials
(160.2750) Materials : Glass and other amorphous materials
(350.5610) Other areas of optics : Radiation
(060.3738) Fiber optics and optical communications : Fiber Bragg gratings, photosensitivity
(160.5335) Materials : Photosensitive materials

ToC Category:
Materials

History
Original Manuscript: February 19, 2008
Revised Manuscript: March 18, 2008
Manuscript Accepted: March 18, 2008
Published: March 26, 2008

Citation
A. Alessi, S. Agnello, F. M. Gelardi, S. Grandi, A. Magistris, and R. Boscaino, "Twofold co-ordinated Ge defects induced by gamma-ray irradiation in Ge-doped SiO2," Opt. Express 16, 4895-4900 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-7-4895


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References

  1. K. O. Hill, Y. Fujii, D. C. Johnson, and B. S. Kawasaki, "Photosensitivity in optical fiber waveguides: Application to reflection filter fabrication," Appl. Phys. Lett. 32, 647-649 (1978). [CrossRef]
  2. G. Pacchioni, L. Skuja, and D. L. Griscom, Defects in SiO2 and related dielectrics: Science and Technology, (Kluwer Academic Publishers, Dordrecht, 2000).
  3. V. B. Neustruev, "Colour centres in germanosilicate glass and optical fibres," J. Phys. Condens. Matter 6, 6901-6936 (1994). [CrossRef]
  4. M. Leone, S. Agnello, R. Boscaino, M. Cannas, and F. M. Gelardi, "Optical absorption, luminescence, and ESR spectral properties of point defects in silica," in Silicon-based Materials and Devices: Properties and Devices, H. S. Nalwa, ed., (Academic Press, San Diego, 2001).
  5. L. Skuja, "Isoelectronic series of twofold coordinated Si, Ge, and Sn atoms in glassy SiO2: a luminescence study," J. Non Cryst. Sol. 149, 77-95 (1992). [CrossRef]
  6. K. Awazu, H. Kawazoe, and M. Yamane, "Simultaneous generation of optical absorption bands 5.14 and 0.452 eV in 9 SiO2:GeO2 glasses heated under H2 atmosphere," J. Appl. Phys 68, 2713-2718 (1990). [CrossRef]
  7. M. Fujimaki, T. Watanabe, T. Katoh, T. Kasahara, N. Miyazaki, Y. Ohki, and H. Nishikawa, "Structures and generation mechanisms of paramagnetic centers and absorption bands responsible for Ge-doped SiO2 optical-fiber gratings," Phys. Rev. B 57, 3920-3926 (1998). [CrossRef]
  8. F. Messina, S. Agnello, R. Boscaino, M. Cannas, S. Grandi, and E. Quartarone, "Optical properties of Ge-oxygen deficient centers embedded in silica films," J. Non Cryst. Sol. 353, 670-673 (2007). [CrossRef]
  9. J. Albert, B. Malo, F. Bilodeau, D. C. Johnson, K. O. Hill, Y. Hibino, and M. Kawachi, "Photosensitivity in Ge-doped silica optical waveguides and fibers with 193-nm light from ArF excimer laser," Opt. Lett. 19, 387-389 (1994).
  10. M. Lancry, B. Poumellec, P. Niay, M. Douay, P. Cordier, and C. Depecker, "VUV and IR absorption spectra induced in H2-loaded and UV hyper-sensitized standard germanosilicate preform plates through exposure to ArF laser light," J. Non Cryst. Sol. 351, 3773-3783 (2005). [CrossRef]
  11. A. J. Cohen and H. L. Smith, "Ultraviolet and infrared absorption of fused germania," J. Phys. Chem. Solids 7, 301-306 (1958).
  12. M. A. Vincenti, S. Almaviva, R. M. Montereali, H. J. Kalinowski, and R. N. Nogueira, "Permanent luminescent micropatterns photoinduced by low-power ultraviolet irradiation in lithium fluoride," Appl. Phys. Lett. 89, 241125 1-3 (2006).
  13. J. Vitko Jr, "ESR studies of hydrogen hyperfine spectra in irradiated vitreous silica," J. Appl. Phys. 49, 5530-5535 (1978). [CrossRef]
  14. K. Awazu, K. Muta, and H. Kawazoe, "Formation mechanism of hydrogen-associated defect with an 11.9 mT doublet in electron spin resonance and red luminescence in 9SiO2:GeO2 fibers," J. Appl. Phys 74, 2237-2240 (1993). [CrossRef]
  15. J. Albert, B. Malo, K. O. Hill, D. C. Johnson, J. L. Brebner, and R. Leonelli, "Refractive-index changes in fused silica produced by heavy-ion implantation followed by photobleaching," Opt. Lett. 17, 1652-1654 (1992).
  16. J. M. Verhaegen, J. L. Brebner, L. B. Allard, and J. Albert, "Ion implantation-induced strong photosensitivity in high-purity fused silica: Correlation of index changes with VUV color centers," Appl. Phys. Lett. 68, 3084-3086 (1996). [CrossRef]
  17. J. Albert, K. O. Hill, B. Malo, D. C. Johnson, J. L. Brebner, Y. B. Trudeau, and G. Kajrys, "Formation and bleaching of strong ultraviolet absorption bands in germanium implanted synthetic fused silica," Appl. Phys. Lett. 60, 148-150 (1992). [CrossRef]
  18. Y. Sakurai, K. Nagasawa, H, Nishikawa, and Y. Ohki, "Point defects in high purity silica induced by high-dose gamma irradiation," J. Appl. Phys. 75, 1372 -1377 (1994). [CrossRef]
  19. S. Agnello and L. Nuccio, "Thermal stability of gamma-irradiation-induced oxygen-deficient centers in silica," Phys. Rev. B 73, 115203 1-6 (2006).

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