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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 15, Iss. 1 — Jan. 1, 1998
  • pp: 193–199

Color-center generation in silicate glasses exposed to infrared femtosecond pulses

O. M. Efimov, K. Gabel, S. V. Garnov, L. B. Glebov, S. Grantham, M. Richardson, and M. J. Soileau  »View Author Affiliations


JOSA B, Vol. 15, Issue 1, pp. 193-199 (1998)
http://dx.doi.org/10.1364/JOSAB.15.000193


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Abstract

The optical properties of silicate glasses under high-power, 850-nm femtosecond laser irradiation have been studied. Photoinduced processes occurred at irradiances well below the threshold for laser-induce damage. Laser spectral line broadening leading to supercontinuum generation in the visible and UV spectral regions was observed in all the glasses studied. Color-center generation and intrinsic luminescence were found in boro-silicate and alkali silicate glasses. It is believed that these processes result from linear and two-photon absorption of the short-wavelength component of the supercontinuum, causing ionization of the glass matrix. No color-center absorption in the visible region was observed in fused silica at irradiances up to the laser-damage threshold.

© 1998 Optical Society of America

OCIS Codes
(130.3060) Integrated optics : Infrared
(160.2750) Materials : Glass and other amorphous materials
(320.2250) Ultrafast optics : Femtosecond phenomena
(320.7110) Ultrafast optics : Ultrafast nonlinear optics
(330.1690) Vision, color, and visual optics : Color

Citation
O. M. Efimov, K. Gabel, S. V. Garnov, L. B. Glebov, S. Grantham, M. Richardson, and M. J. Soileau, "Color-center generation in silicate glasses exposed to infrared femtosecond pulses," J. Opt. Soc. Am. B 15, 193-199 (1998)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-15-1-193


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