This article is cited in 2 papers

Effects of laser radiation on matter

Laser damage behaviour of titania coatings

L. A. Skvortsov

Institute of Cryptography, Communications and Informatics, Academy of Federal Security Service of Russian Federation, Moscow

Abstract: A model is proposed for the generation of defects responsible for laser damage in thin titania films during repetitive exposure to nanosecond near-IR laser pulses. The model relies on the hypothesis that there is charge transfer between two point defect centres differing in photoionisation cross section, one of which has an adsorptive nature. The model's predictions agree well with the experimentally determined accumulation curve and the temperature dependence of the damage threshold at low temperatures and clarify the role of protective coatings.

PACS: 42.62.Cf, 68.55.Ln

Received: 24.06.2009
Revised: 04.11.2009

 English version: Quantum Electronics, 2010, 40:1, 59–63

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