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Proceedings Paper

Gaussian beam characterization using the thermal lens method
Author(s): O. Mendoza-Yero; H. Cabrera Morales; Aristides Alfredo Marcano O.
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Paper Abstract

We study the effects of a thermal lens generated by a pump beam on the propagation of a low power TEM00 probe beam. We show that the thermal lens affects the probe beam waist position and waist radius. The waist position is displaced forward and backward depending on the sign of the refractive index thermal gradient. We show that the waist position does not coincide with the focal plane of the thermal lens. Our results suggest that the absorption coefficient of the sample can be found measuring the time-dependent waist radius of the probe beam.

Paper Details

Date Published: 21 October 2004
PDF: 6 pages
Proc. SPIE 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, (21 October 2004); doi: 10.1117/12.590728
Show Author Affiliations
O. Mendoza-Yero, Univ. de la Habana (Cuba)
H. Cabrera Morales, Univ. de la Habana (Cuba)
Instituto Venezolano de Investigaciones Cientificas (Venezuela)
Aristides Alfredo Marcano O., Instituto Venezolano de Investigaciones Cientifica (Venezuela)


Published in SPIE Proceedings Vol. 5622:
5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications
Aristides Marcano O.; Jose Luis Paz, Editor(s)

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