Gaussian beam characterization using the thermal lens method

O. Mendoza-Yero; H. Cabrera Morales; Aristides Alfredo Marcano O.

doi:10.1117/12.590728

21 October 2004 Gaussian beam characterization using the thermal lens method

O. Mendoza-Yero, H. Cabrera Morales, Aristides Alfredo Marcano O.

Proceedings Volume 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications; (2004) https://doi.org/10.1117/12.590728
Event: 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, 2004, Porlamar, Venezuela

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.

Citation Download Citation

O. Mendoza-Yero, H. Cabrera Morales, and Aristides Alfredo Marcano O. "Gaussian beam characterization using the thermal lens method", Proc. SPIE 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, (21 October 2004); https://doi.org/10.1117/12.590728

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