Phase-matched crystal growth of BaGa4S7 and BaGa4Se7

Peter G. Schunemann; Kevin T. Zawilski

doi:10.1117/12.2613759

1 April 2022 Phase-matched crystal growth of BaGa₄S₇ and BaGa₄Se₇

Proceedings Volume PC11985, Nonlinear Frequency Generation and Conversion: Materials and Devices XXI; PC119850R (2022) https://doi.org/10.1117/12.2613759
Event: SPIE LASE, 2022, San Francisco, California, United States

Abstract

BaGa4S7 (BGS) and BaGa4Se7 (BGSe) are attractive new nonlinear optical (NLO) crystals notable for the rare combination of wide band gaps (3.54 eV and 2.64 eV), long phonon cut-off wavelengths (13.7 m and 18 m), and relative ease of growth from stoichiometric melts, making them ideal for shifting widely-available 1-micron laser sources deep into the mid-IR. Here we demonstrate seeded HGF growth along crystallographic directions optimized for simplified fabrication and maximum yield of oriented frequency conversion devices, allowing apertures up to 25x25 mm2 and lengths greater than 20 mm.

Conference Presentation

Citation Download Citation

Peter G. Schunemann and Kevin T. Zawilski "Phase-matched crystal growth of BaGa₄S₇ and BaGa₄Se₇", Proc. SPIE PC11985, Nonlinear Frequency Generation and Conversion: Materials and Devices XXI, PC119850R (1 April 2022); https://doi.org/10.1117/12.2613759

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