Frequency conversion of near IR lasers in AgxGaxGe1-xS2 and AgxGaxGe1-xSe2

K. Miyata; S. Banerjee; V. Petrov; K. Kato

doi:10.1117/12.761060

13 February 2008 Frequency conversion of near IR lasers in Ag_xGa_xGe_1-xS₂ and Ag_xGa_xGe_1-xSe₂

K. Miyata, S. Banerjee, V. Petrov, K. Kato

Proceedings Volume 6875, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII; 687519 (2008) https://doi.org/10.1117/12.761060
Event: Lasers and Applications in Science and Engineering, 2008, San Jose, California, United States

Abstract

The linear and nonlinear optical properties of Ag_xGa_xGe_1-xS₂ (AGGS) at x = 0.20, 0.25, and 0.50 and Ag_xGa_xGe_1-xSe₂ (AGGSE) at x = 0.17 and 0.25 have been investigated for second-harmonic generation (SHG) of near IR lasers. The polarization dependent transmission curves of these crystals showed larger energy band-gaps for polarization parallel to c axis than that for a axis. The 90° phase-matched SHG wavelengths measured along b axis at room temperature were found to be 0.515, 0.530, and 0.774 μm for the AGGS samples at x = 0.20, 0.25, and 0.50, and 0.638 and 0.676 μm for the AGGSE samples at x = 0.17 and 0.25, respectively. In addition, the crystal to crystal and local variations of the phase-matching conditions are presented together with their temperature stability.

Citation Download Citation

K. Miyata, S. Banerjee, V. Petrov, and K. Kato "Frequency conversion of near IR lasers in Ag_xGa_xGe_1-xS₂ and Ag_xGa_xGe_1-xSe₂", Proc. SPIE 6875, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII, 687519 (13 February 2008); https://doi.org/10.1117/12.761060

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