19 March 2015 Twin HgGa2S4 optical parametric oscillator at 4.3-10.78 µm for biomedical applications
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Abstract
We demonstrate an optical parametric oscillator (OPO) based on two HgGa2S4 (HGS) crystals with exceedingly wide tuning range from 4.2 μm to 10.73 μm. The HGS OPO was pumped by Q-switched Nd:YLF laser at 1.053 μm with a 5-7 ns pulse duration. Absorption spectrum of ammonia was presented to demonstrate the feasibility of the OPO system for spectroscopic measurements and gas detection.
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N. Yu. Kostyukova, N. Yu. Kostyukova, A. A. Boyko, A. A. Boyko, K. G. Zenov, K. G. Zenov, M. K. Starikova, M. K. Starikova, D. B. Kolker, D. B. Kolker, А. А. Karapuzikov, А. А. Karapuzikov, Yu. V. Kistenev, Yu. V. Kistenev, D. A. Kuzmin, D. A. Kuzmin, } "Twin HgGa2S4 optical parametric oscillator at 4.3-10.78 µm for biomedical applications", Proc. SPIE 9448, Saratov Fall Meeting 2014: Optical Technologies in Biophysics and Medicine XVI; Laser Physics and Photonics XVI; and Computational Biophysics, 944806 (19 March 2015); doi: 10.1117/12.2181802; https://doi.org/10.1117/12.2181802
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