Title

Laser-Induced Darkening In Semiconductor-Doped Glasses

Abstract

We have performed experiments to characterize permanent laser-induced darkening in CdS.Sel,- semiconductor-doped glasses with picosecond pulses as a function of fluence, repetition rate, and pulse width. We find that the darkening occurs by means of a nonlinear process that exhibits an anomalous dependence on pulse width. Transmission spectra show that the induced darkening is uniformover the spectral range from the absorption edge out to 820 Am. Darkening in a number of different glasses is compared. On the basis of our results we propose a mechanism that involves photoassistedtrapping of electrons from the semiconductor microcrystallites into states within the glass host material. © 1991 Optical Society of America.

Publication Date

1-1-1991

Publication Title

Journal of the Optical Society of America B: Optical Physics

Volume

8

Issue

7

Number of Pages

1531-1536

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/JOSAB.8.001531

Socpus ID

0001641199 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0001641199

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