Measurement of surface absorption in optical materials by the method of laser photothermal radiometry.

Autor:	Sidoryuk, O., Skvortsov, L.
Zdroj:	Journal of Applied Spectroscopy; Jan1997, Vol. 64 Issue 1, p84-87, 4p
Abstrakt:	The present work is devoted to the development of the method of laser photothermal radiometry with a view to increasing its spatial resolution over the depth of the specimen when surface layers of the substance of thickness about 1 μm or less are to be investigated. As an example, results of an investigation of radiation absorption in the surface layer of a lithium niobate crystal are presented. The absorption index measured at a wavelength of 1.08 μm was ∼0.6 cm−1. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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