Determination of Sellmeier’s equations and nonlinear coefficients of the BGSe crystal, and calculation of infrared emission from phase-matched optical parametric generation (Conference Presentation)

Benoit Boulanger; Feng Guo; Patricia Segonds; Elodie Boursier; Jérôme Debray; Valeriy Badikov; Dmitrii Badikov; Vladimir Panyutin; Valentin Petrov

doi:10.1117/12.2550580

9 March 2020 Determination of Sellmeier’s equations and nonlinear coefficients of the BGSe crystal, and calculation of infrared emission from phase-matched optical parametric generation (Conference Presentation)

Benoit Boulanger, Feng Guo, Patricia Segonds, Elodie Boursier, Jérôme Debray, Valeriy Badikov, Dmitrii Badikov, Vladimir Panyutin, Valentin Petrov

Author Affiliations +

Proceedings Volume 11264, Nonlinear Frequency Generation and Conversion: Materials and Devices XIX; 112640T (2020) https://doi.org/10.1117/12.2550580
Event: SPIE LASE, 2020, San Francisco, California, United States

Abstract

We performed direct measurements of phase-matching conditions of Second-Harmonic Generation (SHG) and Difference-Frequency Generation using the sphere method to determine reliable Sellmeier’s equations valid in the 1-12 microns transparency range of the new BGSe monoclinic nonlinear crystal. We also recorded SHG conversion efficiencies under and out-of phase-matching conditions to determine without the magnitudes and relative signs of the associated non zero quadratic nonlinear coefficients of BGSe. By combining all these data, we were able to calculate pump wavelengths enabling the generation of a widely tunable light in the infrared range from phase-matched Optical Parametric Generation.

Conference Presentation

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Benoit Boulanger, Feng Guo, Patricia Segonds, Elodie Boursier, Jérôme Debray, Valeriy Badikov, Dmitrii Badikov, Vladimir Panyutin, and Valentin Petrov "Determination of Sellmeier’s equations and nonlinear coefficients of the BGSe crystal, and calculation of infrared emission from phase-matched optical parametric generation (Conference Presentation)", Proc. SPIE 11264, Nonlinear Frequency Generation and Conversion: Materials and Devices XIX, 112640T (9 March 2020); https://doi.org/10.1117/12.2550580

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