Laser-induced defects in fused silica by femtosecond IR irradiation

Photostructural defects resulting from exposure to intense near-infrared femtosecond radiation is studied in three $a\text{\ensuremath{-}}\mathrm{Si}{\mathrm{O}}_{2}$ glasses with different impurity levels. The photoinduced defects are studied by UV absorption spectroscopy and are correlated to the structural modifications in the glass matrix through Raman spectroscopy. Information in the dynamics of the defect generation is revealed by the small photon energy of IR femtosecond laser radiation.

[1]  Thomas R Huser,et al.  Modification of the fused silica glass network associated with waveguide fabrication using femtosecond laser pulses , 2003 .

[2]  T. Shikama,et al.  Luminescence in SiO2 induced by MeV energy proton irradiation , 2004 .

[3]  Hideo Hosono,et al.  Power dependence of defect formation in SiO2 glass by F2 laser irradiation , 2002 .

[4]  Ohki,et al.  Correlation of the 5.0- and 7.6-eV absorption bands in SiO2 with oxygen vacancy. , 1989, Physical review. B, Condensed matter.

[5]  P. K. Basu,et al.  Dense electronic excitation induced defects in fused silica , 2003 .

[6]  F. Liu,et al.  UV irradiation-induced defect study of GeO2-SiO2 glasses by Raman spectroscopy , 1997 .

[7]  Linards Skuja,et al.  Defects in oxide glasses , 2005 .

[8]  G. Pacchioni,et al.  Ab initio theory of optical transitions of point defects in SiO 2 , 1998 .

[9]  Hiroaki Misawa,et al.  Microfabrication and Characteristics of Two-Dimensional Photonic Crystal Structures in Vitreous Silica , 1999 .

[10]  Stavros G. Demos,et al.  Optical defects produced in fused silica during laser-induced breakdown , 2003 .

[11]  David L. Griscom,et al.  Optical Properties and Structure of Defects in Silica Glass , 1991 .

[12]  Perry,et al.  Laser-induced damage in dielectrics with nanosecond to subpicosecond pulses. , 1995, Physical review letters.

[13]  Martin Richardson,et al.  Optical properties of infrared femtosecond laser-modified fused silica and application to waveguide fabrication , 2005 .

[14]  Alfredo Pasquarello,et al.  Identification of Raman defect lines as signatures of ring structures in vitreous silica , 1998 .

[15]  A. E. Geissberger,et al.  Raman studies of vitreous Si O 2 versus fictive temperature , 1983 .

[16]  J. P. Callan,et al.  Three-dimensional optical storage inside transparent materials. , 1996, Optics letters.

[17]  David L. Griscom,et al.  Defect structure of glasses: Some outstanding questions in regard to vitreous silica , 1985 .

[18]  R. Boscaino,et al.  Raman spectroscopy study of β-irradiated silica glass , 2003 .

[19]  Arai,et al.  Dependence of defects induced by excimer laser on intrinsic structural defects in synthetic silica glasses. , 1991, Physical review. B, Condensed matter.

[20]  L. Skuja.  Optically active oxygen-deficiency-related centers in amorphous silicon dioxide , 1998 .

[21]  Pierre Meynadier,et al.  Time-resolved study of laser-induced colour centres in ? , 1996 .

[22]  Nakamura,et al.  Correlation of preexisting diamagnetic defect centers with induced paramagnetic defect centers by ultraviolet or vacuum-ultraviolet photons in high-purity silica glasses. , 1993, Physical review. B, Condensed matter.

[23]  Stephen A. Payne,et al.  Induced optical absorption in gamma, neutron and ultraviolet irradiated fused quartz and silica , 1997 .