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Optics Letters

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  • Vol. 20, Iss. 10 — May. 15, 1995
  • pp: 1184–1186

Ultraviolet-radiation-induced chemical reactions through one-and two-photon absorption processes in GeO2–SiO2 glasses

Junji Nishii, Naoyuki Kitamura, Hiroshi Yamanaka, Hideo Hosono, and Hiroshi Kawazoe  »View Author Affiliations


Optics Letters, Vol. 20, Issue 10, pp. 1184-1186 (1995)
http://dx.doi.org/10.1364/OL.20.001184


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Abstract

Photochemical reactions in 10 GeO2 –90 SiO2 glass induced by irradiation with excimer lasers (KrF, 5.0 eV, XeCl, 4.0 eV) and a Hg lamp (4.9 eV) were examined. The irradiation with excimer lasers generated two types of paramagnetic defect, an electron-trapped center associated with fourfold coordinated Ge ions and a self-trapped hole center on bridging oxygen. Taking the optical band gap (~7.1 eV) of the glass obtained in this work and the power density of laser pulses [10–90 mJ/(cm2 pulse), pulse duration 20 ns] into account, we concluded that these centers were formed by band-to-band excitation by two-photon absorption process. On the other hand, the lamp illumination (~16 mW/cm2) caused the formation of Ge E′ centers from preexisting oxygen-vacancy-type defects by the one-photon absorption process. These two kinds of reaction proceed independently, depending on the power densities of UV beams, at least in our experimental condition.

© 1995 Optical Society of America

History
Original Manuscript: November 1, 1994
Published: May 15, 1995

Citation
Junji Nishii, Hideo Hosono, Hiroshi Kawazoe, Naoyuki Kitamura, and Hiroshi Yamanaka, "Ultraviolet-radiation-induced chemical reactions through one-and two-photon absorption processes in GeO2–SiO2 glasses," Opt. Lett. 20, 1184-1186 (1995)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-20-10-1184


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References

  1. R. M. Atkins, V. Mizurahi, Electron. Lett. 28, 1743 (1992). [CrossRef]
  2. H. Hosono, Y. Abe, D. L. Kinser, R. A. Weeks, K. Muta, H. Kawazoe, Phys. Rev. B 46, 11445 (1992). [CrossRef]
  3. T. E. Tsai, E. J. Friebele, M. Rajaram, S. Mukhapadhyay, Appl. Phys. Lett. 64, 1481 (1994). [CrossRef]
  4. R. M. Atkins, V. Mizrahi, T. Erdogan, Electron. Lett. 29, 385 (1993). [CrossRef]
  5. C. G. Askins, T. E. Tsai, G. M. Williams, M. A. Putnum, M. Bashkansky, E. J. Friebele, Opt. Lett. 17, 833 (1992). [CrossRef] [PubMed]
  6. G. Meltz, W. W. Morey, Proc. Soc. Photo-Opt. Instrum. Eng. 1516, 185 (1991).
  7. H. Imai, K. Arai, H. Imagawa, H. Hosono, Y. Abe, Phys. Rev. B 38, 12772 (1988). [CrossRef]
  8. J. Nishii, H. Yamanaka, H. Hosono, H. Kawazoe, Appl. Phys. Lett. 64, 282 (1994). [CrossRef]
  9. H. Kawazoe, J. Non-Cryst. Solids 71, 231 (1985). [CrossRef]
  10. T. E. Tsai, D. L. Griscom, E. J. Friebele, Diffusion Defect Data 53–54, 469 (1987). [CrossRef]
  11. E. J. Friebele, D. L. Griscom, Mat. Res. Soc. Symp. Proc. 61, 319 (1985). [CrossRef]
  12. T. E. Tsai, D. L. Griscom, E. J. Friebele, J. Appl. Phys. 62, 2264 (1987). [CrossRef]
  13. D. L. Griscom, Phys. Rev. B 40, 4224 (1989). [CrossRef]
  14. Z. A. Weinberg, G. W. Rubloff, E. Bassous, Phys. Rev. B 19, 3107 (1979). [CrossRef]
  15. N. M. Ravindra, R. A. Weeks, D. L. Kinser, Phys. Rev. B 36, 6132 (1987). [CrossRef]
  16. The concentration of induced STH is less than that of induced GEC. This difference is considered to be the thermal stability of STH and GEC, i.e., STH is stable at low temperature at 77 K but is unstable at room temperature,13 whereas GEC is stable above 250 °C.11
  17. P. St. Russell, D. P. Hand, Opt. Lett. 15, 102 (1990). [CrossRef] [PubMed]

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