Measurement refractive index and absorption coefficients of nonlinear optical crystals

Shekhar Guha; Jean Wei; Joel Murray

doi:10.1117/12.2655657

17 March 2023 Measurement refractive index and absorption coefficients of nonlinear optical crystals

Shekhar Guha, Jean Wei, Joel Murray

Proceedings Volume PC12405, Nonlinear Frequency Generation and Conversion: Materials and Devices XXII; PC124050D (2023) https://doi.org/10.1117/12.2655657
Event: SPIE LASE, 2023, San Francisco, California, United States

Abstract

Using a combination of three techniques, ellipsometry, interferometry and transmission measurements, the temperature dependence of refractive index (n) and absorption coefficient (α) of CdSiP2 for light polarization along and perpendicular to the c-axis of the crystal was determined. GaAs was also studied using the same techniques to determine n and α expanded over the spectral and temperature ranges available in the literature (0.9 to 25 μm for n, over temperature range of 77 to 500 K). values of α in the 0.85 to 0.9 μm region of GaAs and in the 0.5 to 0.6 μm band-edge region of CdSiP2.

Conference Presentation

Citation Download Citation

Shekhar Guha, Jean Wei, and Joel Murray "Measurement refractive index and absorption coefficients of nonlinear optical crystals", Proc. SPIE PC12405, Nonlinear Frequency Generation and Conversion: Materials and Devices XXII, PC124050D (17 March 2023); https://doi.org/10.1117/12.2655657

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