Abstract

Gamma-ray-irradiated lead-silicate glass shows enhanced photoinduced quasi-phase-matched second-harmonic generation. This is due to the formation of color centers, which serve as traps for space charge, resulting in an internal dc field due to the coherent photovoltaic effect. The color center formation also enhances the χ(3) nonlinearity, which contributes to the photoinduced quasi-phase-matched second-harmonic generation as well. We separate these two contributions and show their respective roles.

© 2003 Optical Society of America

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  1. Y. Sasaki and Y. Ohmori, “Phase-matched sum-frequency light generation in optical fibers,” Appl. Phys. Lett. 39, 466–468 (1981).
    [CrossRef]
  2. U. Österberg and W. Margulis, “Dye laser pumped by Nd:YAG laser pulses frequency doubled in a glass optical fiber,” Opt. Lett. 11, 516–518 (1986).
    [CrossRef] [PubMed]
  3. R. H. Stolen and H. W. K. Tom, “Self-organized phase-matched harmonic generation in optical fibers,” Opt. Lett. 12, 585–587 (1987).
    [CrossRef] [PubMed]
  4. N. M. Lawandy, “Intensity dependence of optically encoded second-harmonic generation in germanosilicate glass: evidence for a light-induced delocalization transition,” Phys. Rev. Lett. 65, 1745–1748 (1990).
    [CrossRef] [PubMed]
  5. Y. Nageno, Jae H. Kyung, and N. M. Lawandy, “Compositional dependence of optically encoded second-harmonic generation in pure binary lead-silicate and ternary barium borosilicate glasses,” Opt. Lett. 20, 2180–2182 (1995).
    [CrossRef] [PubMed]
  6. T. J. Driscoll and N. M. Lawandy, “UV enhancement and erasure of second-harmonic generation in germanosilicate fibers,” Opt. Lett. 17, 571–573 (1992).
    [CrossRef] [PubMed]
  7. B. Ya. Zel’dovich, Yu. E. Kapitskii, and V. M. Churikov, “Induced χ(2) gratings in glasses,” JETP Lett. 53, 78–81 (1991).
  8. M. A. Bolshtyanskii, B. Ya. Zel’dovich, A. Yu. Savchenko, and V. M. Churikov, “Measurements of the phase of a χ(2) hologram recorded in glass,” Tech. Phys. Lett. 19, 293–294 (1993).
  9. K. O. Hill, Y. Fujii, D. C. Johnson, and B. S. Kawasaki, “Photosensitivity in optical waveguides: application to reflection filter fabrication,” Appl. Phys. Lett. 32, 647–649 (1978).
    [CrossRef]
  10. G. Meltz, W. W. Morey, and W. H. Glen, “Formation of Bragg gratings in optical fibers by a transverse holographic method,” Opt. Lett. 14, 823–825 (1989).
    [CrossRef] [PubMed]
  11. H. G. Park and B. Y. Kim, “Intermodal coupler using permanently photo-induced grating in two-mode optical fibre,” Electron. Lett. 25, 797–799 (1989).
    [CrossRef]
  12. N. Bloemberger, Nonlinear Optics (Benjamin, New York, 1965).
  13. B. F. Levine and C. G. Bethea, “Second and third order hyperpolarizabilities of organic molecules,” J. Chem. Phys. 63, 2666–2682 (1975).
    [CrossRef]
  14. E. M. Dianov, P. G. Kazansky, D. S. Starodubov, and D. Yu. Stepanov, “Photoinduced second harmonic generation: observation of charge separation due to the photovoltaic effect,” Sov. Lightwave Commun. 2, 83–88 (1992).
  15. N. B. Baranova, A. N. Chudinov, and B. Ya. Zel’dovich, “Polar asymmetry of photoionization by a field with 〈E3〉≠0. Theory and experiment,” Opt. Commun. 79, 116–120 (1990).
    [CrossRef]
  16. B. Ya. Zel’dovich and A. N. Chudinov, “interference of fields with frequencies ω and 2ω in external photoelectric effect,” JETP Lett. 50, 439–441 (1989).
  17. H. G. Muller, P. H. Bucksbaum, D. W. Schumacher, and A. Zavriyev, “Above threshold ionization with a two-colour laser field,” J. Phys. B 23, 2761–2769 (1990).
    [CrossRef]
  18. E. M. Dianov, P. G. Kazansky, and D. Yu. Stepanov, “problem of the photoinduced second harmonic generation in optical fibers,” Sov. J. Quantum Electron. 19, 575–576 (1989)[Kvant. Elektron. (Kiev) 16, 887 (1989)].
    [CrossRef]
  19. E. V. Anoikin, E. M. Dianov, P. G. Kazansky, and D. Yu. Stepanov, “Photoinduced second-harmonic generation in gamma-ray-irradiated optical fibers,” Opt. Lett. 15, 834–836 (1990).
    [CrossRef] [PubMed]
  20. A. Kamal, D. A. Weinberger, and J. H. Chu, “Enhanced second-harmonic generation in with gamma rays irradiated fibers,” in OSA Annual Meeting, Vol. 15 of 1990 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1990), paper TuGG2.
  21. Y. Isbi, S. Sternklar, E. Granot, L. Boehm, and A. Lewis, “Enhanced photoinduced χ(2) in gamma-ray-irradiated bulk glass,” Opt. Lett. 25, 911–913 (2000).
    [CrossRef]
  22. Y. Isbi, S. Sternklar, E. Granot, L. Boehm, and A. Lewis, “Enhanced χ(3) in γ-ray irradiated bulk glass,” Opt. Commun. 194, 213–216 (2001).
    [CrossRef]
  23. M. J. Liepmann, L. Boehm, and Z. Vagish, “Gamma radiation effects on some optical glasses,” Proc. SPIE 1761, 284–295 (1992).
    [CrossRef]
  24. J. Wong and C. A. Angel, Glass Structure by Spectroscopy (Marcel Dekker, New York, 1976), pp. 346–396, 612–659.
  25. N. M. Lawandy, “Light induced transport and delocalization in transparent amorphous systems,” Opt. Commun. 74, 180–184 (1989).
    [CrossRef]
  26. P. D. Maker, R. W. Terhune, M. Nisenoff, and C. M. Savage, “Effects of dispersion and focusing on the production of optical harmonics,” Phys. Rev. Lett. 8, 21–22 (1962).
    [CrossRef]

2001 (1)

Y. Isbi, S. Sternklar, E. Granot, L. Boehm, and A. Lewis, “Enhanced χ(3) in γ-ray irradiated bulk glass,” Opt. Commun. 194, 213–216 (2001).
[CrossRef]

2000 (1)

1995 (1)

1993 (1)

M. A. Bolshtyanskii, B. Ya. Zel’dovich, A. Yu. Savchenko, and V. M. Churikov, “Measurements of the phase of a χ(2) hologram recorded in glass,” Tech. Phys. Lett. 19, 293–294 (1993).

1992 (3)

T. J. Driscoll and N. M. Lawandy, “UV enhancement and erasure of second-harmonic generation in germanosilicate fibers,” Opt. Lett. 17, 571–573 (1992).
[CrossRef] [PubMed]

M. J. Liepmann, L. Boehm, and Z. Vagish, “Gamma radiation effects on some optical glasses,” Proc. SPIE 1761, 284–295 (1992).
[CrossRef]

E. M. Dianov, P. G. Kazansky, D. S. Starodubov, and D. Yu. Stepanov, “Photoinduced second harmonic generation: observation of charge separation due to the photovoltaic effect,” Sov. Lightwave Commun. 2, 83–88 (1992).

1991 (1)

B. Ya. Zel’dovich, Yu. E. Kapitskii, and V. M. Churikov, “Induced χ(2) gratings in glasses,” JETP Lett. 53, 78–81 (1991).

1990 (4)

N. M. Lawandy, “Intensity dependence of optically encoded second-harmonic generation in germanosilicate glass: evidence for a light-induced delocalization transition,” Phys. Rev. Lett. 65, 1745–1748 (1990).
[CrossRef] [PubMed]

N. B. Baranova, A. N. Chudinov, and B. Ya. Zel’dovich, “Polar asymmetry of photoionization by a field with 〈E3〉≠0. Theory and experiment,” Opt. Commun. 79, 116–120 (1990).
[CrossRef]

H. G. Muller, P. H. Bucksbaum, D. W. Schumacher, and A. Zavriyev, “Above threshold ionization with a two-colour laser field,” J. Phys. B 23, 2761–2769 (1990).
[CrossRef]

E. V. Anoikin, E. M. Dianov, P. G. Kazansky, and D. Yu. Stepanov, “Photoinduced second-harmonic generation in gamma-ray-irradiated optical fibers,” Opt. Lett. 15, 834–836 (1990).
[CrossRef] [PubMed]

1989 (4)

B. Ya. Zel’dovich and A. N. Chudinov, “interference of fields with frequencies ω and 2ω in external photoelectric effect,” JETP Lett. 50, 439–441 (1989).

G. Meltz, W. W. Morey, and W. H. Glen, “Formation of Bragg gratings in optical fibers by a transverse holographic method,” Opt. Lett. 14, 823–825 (1989).
[CrossRef] [PubMed]

H. G. Park and B. Y. Kim, “Intermodal coupler using permanently photo-induced grating in two-mode optical fibre,” Electron. Lett. 25, 797–799 (1989).
[CrossRef]

N. M. Lawandy, “Light induced transport and delocalization in transparent amorphous systems,” Opt. Commun. 74, 180–184 (1989).
[CrossRef]

1987 (1)

1986 (1)

1981 (1)

Y. Sasaki and Y. Ohmori, “Phase-matched sum-frequency light generation in optical fibers,” Appl. Phys. Lett. 39, 466–468 (1981).
[CrossRef]

1978 (1)

K. O. Hill, Y. Fujii, D. C. Johnson, and B. S. Kawasaki, “Photosensitivity in optical waveguides: application to reflection filter fabrication,” Appl. Phys. Lett. 32, 647–649 (1978).
[CrossRef]

1975 (1)

B. F. Levine and C. G. Bethea, “Second and third order hyperpolarizabilities of organic molecules,” J. Chem. Phys. 63, 2666–2682 (1975).
[CrossRef]

1962 (1)

P. D. Maker, R. W. Terhune, M. Nisenoff, and C. M. Savage, “Effects of dispersion and focusing on the production of optical harmonics,” Phys. Rev. Lett. 8, 21–22 (1962).
[CrossRef]

Anoikin, E. V.

Baranova, N. B.

N. B. Baranova, A. N. Chudinov, and B. Ya. Zel’dovich, “Polar asymmetry of photoionization by a field with 〈E3〉≠0. Theory and experiment,” Opt. Commun. 79, 116–120 (1990).
[CrossRef]

Bethea, C. G.

B. F. Levine and C. G. Bethea, “Second and third order hyperpolarizabilities of organic molecules,” J. Chem. Phys. 63, 2666–2682 (1975).
[CrossRef]

Boehm, L.

Y. Isbi, S. Sternklar, E. Granot, L. Boehm, and A. Lewis, “Enhanced χ(3) in γ-ray irradiated bulk glass,” Opt. Commun. 194, 213–216 (2001).
[CrossRef]

Y. Isbi, S. Sternklar, E. Granot, L. Boehm, and A. Lewis, “Enhanced photoinduced χ(2) in gamma-ray-irradiated bulk glass,” Opt. Lett. 25, 911–913 (2000).
[CrossRef]

M. J. Liepmann, L. Boehm, and Z. Vagish, “Gamma radiation effects on some optical glasses,” Proc. SPIE 1761, 284–295 (1992).
[CrossRef]

Bolshtyanskii, M. A.

M. A. Bolshtyanskii, B. Ya. Zel’dovich, A. Yu. Savchenko, and V. M. Churikov, “Measurements of the phase of a χ(2) hologram recorded in glass,” Tech. Phys. Lett. 19, 293–294 (1993).

Bucksbaum, P. H.

H. G. Muller, P. H. Bucksbaum, D. W. Schumacher, and A. Zavriyev, “Above threshold ionization with a two-colour laser field,” J. Phys. B 23, 2761–2769 (1990).
[CrossRef]

Chudinov, A. N.

N. B. Baranova, A. N. Chudinov, and B. Ya. Zel’dovich, “Polar asymmetry of photoionization by a field with 〈E3〉≠0. Theory and experiment,” Opt. Commun. 79, 116–120 (1990).
[CrossRef]

B. Ya. Zel’dovich and A. N. Chudinov, “interference of fields with frequencies ω and 2ω in external photoelectric effect,” JETP Lett. 50, 439–441 (1989).

Churikov, V. M.

M. A. Bolshtyanskii, B. Ya. Zel’dovich, A. Yu. Savchenko, and V. M. Churikov, “Measurements of the phase of a χ(2) hologram recorded in glass,” Tech. Phys. Lett. 19, 293–294 (1993).

B. Ya. Zel’dovich, Yu. E. Kapitskii, and V. M. Churikov, “Induced χ(2) gratings in glasses,” JETP Lett. 53, 78–81 (1991).

Dianov, E. M.

E. M. Dianov, P. G. Kazansky, D. S. Starodubov, and D. Yu. Stepanov, “Photoinduced second harmonic generation: observation of charge separation due to the photovoltaic effect,” Sov. Lightwave Commun. 2, 83–88 (1992).

E. V. Anoikin, E. M. Dianov, P. G. Kazansky, and D. Yu. Stepanov, “Photoinduced second-harmonic generation in gamma-ray-irradiated optical fibers,” Opt. Lett. 15, 834–836 (1990).
[CrossRef] [PubMed]

Driscoll, T. J.

Fujii, Y.

K. O. Hill, Y. Fujii, D. C. Johnson, and B. S. Kawasaki, “Photosensitivity in optical waveguides: application to reflection filter fabrication,” Appl. Phys. Lett. 32, 647–649 (1978).
[CrossRef]

Glen, W. H.

Granot, E.

Y. Isbi, S. Sternklar, E. Granot, L. Boehm, and A. Lewis, “Enhanced χ(3) in γ-ray irradiated bulk glass,” Opt. Commun. 194, 213–216 (2001).
[CrossRef]

Y. Isbi, S. Sternklar, E. Granot, L. Boehm, and A. Lewis, “Enhanced photoinduced χ(2) in gamma-ray-irradiated bulk glass,” Opt. Lett. 25, 911–913 (2000).
[CrossRef]

Hill, K. O.

K. O. Hill, Y. Fujii, D. C. Johnson, and B. S. Kawasaki, “Photosensitivity in optical waveguides: application to reflection filter fabrication,” Appl. Phys. Lett. 32, 647–649 (1978).
[CrossRef]

Isbi, Y.

Y. Isbi, S. Sternklar, E. Granot, L. Boehm, and A. Lewis, “Enhanced χ(3) in γ-ray irradiated bulk glass,” Opt. Commun. 194, 213–216 (2001).
[CrossRef]

Y. Isbi, S. Sternklar, E. Granot, L. Boehm, and A. Lewis, “Enhanced photoinduced χ(2) in gamma-ray-irradiated bulk glass,” Opt. Lett. 25, 911–913 (2000).
[CrossRef]

Johnson, D. C.

K. O. Hill, Y. Fujii, D. C. Johnson, and B. S. Kawasaki, “Photosensitivity in optical waveguides: application to reflection filter fabrication,” Appl. Phys. Lett. 32, 647–649 (1978).
[CrossRef]

Kapitskii, Yu. E.

B. Ya. Zel’dovich, Yu. E. Kapitskii, and V. M. Churikov, “Induced χ(2) gratings in glasses,” JETP Lett. 53, 78–81 (1991).

Kawasaki, B. S.

K. O. Hill, Y. Fujii, D. C. Johnson, and B. S. Kawasaki, “Photosensitivity in optical waveguides: application to reflection filter fabrication,” Appl. Phys. Lett. 32, 647–649 (1978).
[CrossRef]

Kazansky, P. G.

E. M. Dianov, P. G. Kazansky, D. S. Starodubov, and D. Yu. Stepanov, “Photoinduced second harmonic generation: observation of charge separation due to the photovoltaic effect,” Sov. Lightwave Commun. 2, 83–88 (1992).

E. V. Anoikin, E. M. Dianov, P. G. Kazansky, and D. Yu. Stepanov, “Photoinduced second-harmonic generation in gamma-ray-irradiated optical fibers,” Opt. Lett. 15, 834–836 (1990).
[CrossRef] [PubMed]

Kim, B. Y.

H. G. Park and B. Y. Kim, “Intermodal coupler using permanently photo-induced grating in two-mode optical fibre,” Electron. Lett. 25, 797–799 (1989).
[CrossRef]

Kyung, Jae H.

Lawandy, N. M.

Y. Nageno, Jae H. Kyung, and N. M. Lawandy, “Compositional dependence of optically encoded second-harmonic generation in pure binary lead-silicate and ternary barium borosilicate glasses,” Opt. Lett. 20, 2180–2182 (1995).
[CrossRef] [PubMed]

T. J. Driscoll and N. M. Lawandy, “UV enhancement and erasure of second-harmonic generation in germanosilicate fibers,” Opt. Lett. 17, 571–573 (1992).
[CrossRef] [PubMed]

N. M. Lawandy, “Intensity dependence of optically encoded second-harmonic generation in germanosilicate glass: evidence for a light-induced delocalization transition,” Phys. Rev. Lett. 65, 1745–1748 (1990).
[CrossRef] [PubMed]

N. M. Lawandy, “Light induced transport and delocalization in transparent amorphous systems,” Opt. Commun. 74, 180–184 (1989).
[CrossRef]

Levine, B. F.

B. F. Levine and C. G. Bethea, “Second and third order hyperpolarizabilities of organic molecules,” J. Chem. Phys. 63, 2666–2682 (1975).
[CrossRef]

Lewis, A.

Y. Isbi, S. Sternklar, E. Granot, L. Boehm, and A. Lewis, “Enhanced χ(3) in γ-ray irradiated bulk glass,” Opt. Commun. 194, 213–216 (2001).
[CrossRef]

Y. Isbi, S. Sternklar, E. Granot, L. Boehm, and A. Lewis, “Enhanced photoinduced χ(2) in gamma-ray-irradiated bulk glass,” Opt. Lett. 25, 911–913 (2000).
[CrossRef]

Liepmann, M. J.

M. J. Liepmann, L. Boehm, and Z. Vagish, “Gamma radiation effects on some optical glasses,” Proc. SPIE 1761, 284–295 (1992).
[CrossRef]

Maker, P. D.

P. D. Maker, R. W. Terhune, M. Nisenoff, and C. M. Savage, “Effects of dispersion and focusing on the production of optical harmonics,” Phys. Rev. Lett. 8, 21–22 (1962).
[CrossRef]

Margulis, W.

Meltz, G.

Morey, W. W.

Muller, H. G.

H. G. Muller, P. H. Bucksbaum, D. W. Schumacher, and A. Zavriyev, “Above threshold ionization with a two-colour laser field,” J. Phys. B 23, 2761–2769 (1990).
[CrossRef]

Nageno, Y.

Nisenoff, M.

P. D. Maker, R. W. Terhune, M. Nisenoff, and C. M. Savage, “Effects of dispersion and focusing on the production of optical harmonics,” Phys. Rev. Lett. 8, 21–22 (1962).
[CrossRef]

Ohmori, Y.

Y. Sasaki and Y. Ohmori, “Phase-matched sum-frequency light generation in optical fibers,” Appl. Phys. Lett. 39, 466–468 (1981).
[CrossRef]

Österberg, U.

Park, H. G.

H. G. Park and B. Y. Kim, “Intermodal coupler using permanently photo-induced grating in two-mode optical fibre,” Electron. Lett. 25, 797–799 (1989).
[CrossRef]

Sasaki, Y.

Y. Sasaki and Y. Ohmori, “Phase-matched sum-frequency light generation in optical fibers,” Appl. Phys. Lett. 39, 466–468 (1981).
[CrossRef]

Savage, C. M.

P. D. Maker, R. W. Terhune, M. Nisenoff, and C. M. Savage, “Effects of dispersion and focusing on the production of optical harmonics,” Phys. Rev. Lett. 8, 21–22 (1962).
[CrossRef]

Savchenko, A. Yu.

M. A. Bolshtyanskii, B. Ya. Zel’dovich, A. Yu. Savchenko, and V. M. Churikov, “Measurements of the phase of a χ(2) hologram recorded in glass,” Tech. Phys. Lett. 19, 293–294 (1993).

Schumacher, D. W.

H. G. Muller, P. H. Bucksbaum, D. W. Schumacher, and A. Zavriyev, “Above threshold ionization with a two-colour laser field,” J. Phys. B 23, 2761–2769 (1990).
[CrossRef]

Starodubov, D. S.

E. M. Dianov, P. G. Kazansky, D. S. Starodubov, and D. Yu. Stepanov, “Photoinduced second harmonic generation: observation of charge separation due to the photovoltaic effect,” Sov. Lightwave Commun. 2, 83–88 (1992).

Stepanov, D. Yu.

E. M. Dianov, P. G. Kazansky, D. S. Starodubov, and D. Yu. Stepanov, “Photoinduced second harmonic generation: observation of charge separation due to the photovoltaic effect,” Sov. Lightwave Commun. 2, 83–88 (1992).

E. V. Anoikin, E. M. Dianov, P. G. Kazansky, and D. Yu. Stepanov, “Photoinduced second-harmonic generation in gamma-ray-irradiated optical fibers,” Opt. Lett. 15, 834–836 (1990).
[CrossRef] [PubMed]

Sternklar, S.

Y. Isbi, S. Sternklar, E. Granot, L. Boehm, and A. Lewis, “Enhanced χ(3) in γ-ray irradiated bulk glass,” Opt. Commun. 194, 213–216 (2001).
[CrossRef]

Y. Isbi, S. Sternklar, E. Granot, L. Boehm, and A. Lewis, “Enhanced photoinduced χ(2) in gamma-ray-irradiated bulk glass,” Opt. Lett. 25, 911–913 (2000).
[CrossRef]

Stolen, R. H.

Terhune, R. W.

P. D. Maker, R. W. Terhune, M. Nisenoff, and C. M. Savage, “Effects of dispersion and focusing on the production of optical harmonics,” Phys. Rev. Lett. 8, 21–22 (1962).
[CrossRef]

Tom, H. W. K.

Vagish, Z.

M. J. Liepmann, L. Boehm, and Z. Vagish, “Gamma radiation effects on some optical glasses,” Proc. SPIE 1761, 284–295 (1992).
[CrossRef]

Zavriyev, A.

H. G. Muller, P. H. Bucksbaum, D. W. Schumacher, and A. Zavriyev, “Above threshold ionization with a two-colour laser field,” J. Phys. B 23, 2761–2769 (1990).
[CrossRef]

Zel’dovich, B. Ya.

M. A. Bolshtyanskii, B. Ya. Zel’dovich, A. Yu. Savchenko, and V. M. Churikov, “Measurements of the phase of a χ(2) hologram recorded in glass,” Tech. Phys. Lett. 19, 293–294 (1993).

B. Ya. Zel’dovich, Yu. E. Kapitskii, and V. M. Churikov, “Induced χ(2) gratings in glasses,” JETP Lett. 53, 78–81 (1991).

N. B. Baranova, A. N. Chudinov, and B. Ya. Zel’dovich, “Polar asymmetry of photoionization by a field with 〈E3〉≠0. Theory and experiment,” Opt. Commun. 79, 116–120 (1990).
[CrossRef]

B. Ya. Zel’dovich and A. N. Chudinov, “interference of fields with frequencies ω and 2ω in external photoelectric effect,” JETP Lett. 50, 439–441 (1989).

Appl. Phys. Lett. (2)

Y. Sasaki and Y. Ohmori, “Phase-matched sum-frequency light generation in optical fibers,” Appl. Phys. Lett. 39, 466–468 (1981).
[CrossRef]

K. O. Hill, Y. Fujii, D. C. Johnson, and B. S. Kawasaki, “Photosensitivity in optical waveguides: application to reflection filter fabrication,” Appl. Phys. Lett. 32, 647–649 (1978).
[CrossRef]

Electron. Lett. (1)

H. G. Park and B. Y. Kim, “Intermodal coupler using permanently photo-induced grating in two-mode optical fibre,” Electron. Lett. 25, 797–799 (1989).
[CrossRef]

J. Chem. Phys. (1)

B. F. Levine and C. G. Bethea, “Second and third order hyperpolarizabilities of organic molecules,” J. Chem. Phys. 63, 2666–2682 (1975).
[CrossRef]

J. Phys. B (1)

H. G. Muller, P. H. Bucksbaum, D. W. Schumacher, and A. Zavriyev, “Above threshold ionization with a two-colour laser field,” J. Phys. B 23, 2761–2769 (1990).
[CrossRef]

JETP Lett. (2)

B. Ya. Zel’dovich and A. N. Chudinov, “interference of fields with frequencies ω and 2ω in external photoelectric effect,” JETP Lett. 50, 439–441 (1989).

B. Ya. Zel’dovich, Yu. E. Kapitskii, and V. M. Churikov, “Induced χ(2) gratings in glasses,” JETP Lett. 53, 78–81 (1991).

Opt. Commun. (3)

N. B. Baranova, A. N. Chudinov, and B. Ya. Zel’dovich, “Polar asymmetry of photoionization by a field with 〈E3〉≠0. Theory and experiment,” Opt. Commun. 79, 116–120 (1990).
[CrossRef]

Y. Isbi, S. Sternklar, E. Granot, L. Boehm, and A. Lewis, “Enhanced χ(3) in γ-ray irradiated bulk glass,” Opt. Commun. 194, 213–216 (2001).
[CrossRef]

N. M. Lawandy, “Light induced transport and delocalization in transparent amorphous systems,” Opt. Commun. 74, 180–184 (1989).
[CrossRef]

Opt. Lett. (7)

Phys. Rev. Lett. (2)

P. D. Maker, R. W. Terhune, M. Nisenoff, and C. M. Savage, “Effects of dispersion and focusing on the production of optical harmonics,” Phys. Rev. Lett. 8, 21–22 (1962).
[CrossRef]

N. M. Lawandy, “Intensity dependence of optically encoded second-harmonic generation in germanosilicate glass: evidence for a light-induced delocalization transition,” Phys. Rev. Lett. 65, 1745–1748 (1990).
[CrossRef] [PubMed]

Proc. SPIE (1)

M. J. Liepmann, L. Boehm, and Z. Vagish, “Gamma radiation effects on some optical glasses,” Proc. SPIE 1761, 284–295 (1992).
[CrossRef]

Sov. Lightwave Commun. (1)

E. M. Dianov, P. G. Kazansky, D. S. Starodubov, and D. Yu. Stepanov, “Photoinduced second harmonic generation: observation of charge separation due to the photovoltaic effect,” Sov. Lightwave Commun. 2, 83–88 (1992).

Tech. Phys. Lett. (1)

M. A. Bolshtyanskii, B. Ya. Zel’dovich, A. Yu. Savchenko, and V. M. Churikov, “Measurements of the phase of a χ(2) hologram recorded in glass,” Tech. Phys. Lett. 19, 293–294 (1993).

Other (4)

N. Bloemberger, Nonlinear Optics (Benjamin, New York, 1965).

J. Wong and C. A. Angel, Glass Structure by Spectroscopy (Marcel Dekker, New York, 1976), pp. 346–396, 612–659.

E. M. Dianov, P. G. Kazansky, and D. Yu. Stepanov, “problem of the photoinduced second harmonic generation in optical fibers,” Sov. J. Quantum Electron. 19, 575–576 (1989)[Kvant. Elektron. (Kiev) 16, 887 (1989)].
[CrossRef]

A. Kamal, D. A. Weinberger, and J. H. Chu, “Enhanced second-harmonic generation in with gamma rays irradiated fibers,” in OSA Annual Meeting, Vol. 15 of 1990 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1990), paper TuGG2.

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Figures (5)

Fig. 1
Fig. 1

Absorption coefficient α as a function of γ irradiation for fresh and old samples.

Fig. 2
Fig. 2

PIQSHG efficiency as a function of γ irradiation.

Fig. 3
Fig. 3

PIQSHG efficiency as a function of the absorption coefficient.

Fig. 4
Fig. 4

χ(3) as a function of the γ-irradiation-induced absorption coefficient.

Fig. 5
Fig. 5

Saturated EDC as a function of the γ-irradiation-induced absorption coefficient.

Equations (9)

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dnidR=δi(Ni-ni).
ni=Ni[1-exp(-δiR)].
ni=Ni[1-exp(-δ1R)]exp[-β(T)t]=ni0exp[-β(T)t],
dA(λ)dx=-σ0(λ)N0+i=1σi(λ)niA,
Ti(λ)=A(λ)A0(λ)=exp-σ0(λ)N0+i=1σi(λ)nixexp-B0(λ)-i=1Bi(λ)[1-exp(-δiR)]exp[-β(T)t],
T=T0exp{-B(λ)[1-exp(-δR)]exp[-β(T)t]}=T0exp[-2α(λ)l],
α(λ)=σi(λ)ni2=Bi(λ)[1-exp(-δiR)]exp[-β(T)t]2l.
χeff(2)(ω, ω, 2ω)=3EDCχ(3)(ω, ω, 0, 2ω),
ηSHG[EDCχ(3)(ω, ω, 0, 2ω)]2.

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