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Proceedings Paper

Use of scanning Hartmann sensor for measurement of thermal lensing in TGG crystal
Author(s): Anotoly K. Poteomkin; Nikolay Andreev; Igor Ivanov; Efim A. Khazanov; Andrey Shaykin; Victor Zelenogorsky
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Paper Abstract

Investigations of thermal effects caused by absorption of laser radiation in Faraday isolators and Faraday mirrors are becoming more important. A most promising medium for Faraday devices in the wavelength range of 600-1200 nm is the terbium gallium garnet (TGG) crystal. In order to measure its thermo-optic constants (which are unknown) we used a scanning Hartmann sensor technique. This technique can easily and inexpensively measure wavefront distortions induced by optical elements to within 2nm.

Paper Details

Date Published: 16 June 2003
PDF: 12 pages
Proc. SPIE 4970, Laser Crystals, Glasses, and Nonlinear Materials Growth and Characterization, (16 June 2003); doi: 10.1117/12.479162
Show Author Affiliations
Anotoly K. Poteomkin, Institute of Applied Physics (Russia)
Nikolay Andreev, Institute of Applied Physics (Russia)
Igor Ivanov, Institute for Material Research (Russia)
Efim A. Khazanov, Institute of Applied Physics (Russia)
Andrey Shaykin, Institute of Applied Physics (Russia)
Victor Zelenogorsky, Institute of Applied Physics (Russia)

Published in SPIE Proceedings Vol. 4970:
Laser Crystals, Glasses, and Nonlinear Materials Growth and Characterization
Yehoshua Y. Kalisky, Editor(s)

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