Abstract

We report the ultraviolet laser-induced absorption spectra and refractive index changes in bismuth-based silicate glass. A positive maximum refractive index change of 6 × 10−4 has been observed in bismuth-based silicate glass upon exposure to a pulsed 248 nm KrF excimer laser. It is also seen that the changes in the absorbance and refractive index are strongly dependent on glass melting conditions.

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