Effective nonlinearity of the new quaternary chalcogenide crystal BaGa 2 GeSe 6

The unknown magnitude and relative signs of the trigonal crystal ${\rm BaGa}_{2}{\rm GeSe}_{6}$BaGa GeSe nonlinear coefficients have hindered defining an optimum orientation for maximum frequency conversion efficiency. This issue is resolved in the present work, obtaining ${d_{11}}= + {23.6}$d =+23....

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Bibliographic Details
Published in:Optics letters 2020-04, Vol.45 (8), p.2136
Main Authors: Kato, Kiyoshi, Badikov, Valeriy V, Wang, Li, Panyutin, Vladimir L, Mitin, Konstantin V, Miyata, Kentaro, Petrov, Valentin
Format: Article
Language:English
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Summary:The unknown magnitude and relative signs of the trigonal crystal ${\rm BaGa}_{2}{\rm GeSe}_{6}$BaGa GeSe nonlinear coefficients have hindered defining an optimum orientation for maximum frequency conversion efficiency. This issue is resolved in the present work, obtaining ${d_{11}}= + {23.6}$d =+23.6, ${d_{22}}= - {18.5}$d =-18.5, and ${d_{31}}= + {18.3}\;{\rm pm/V}$d =+18.3pm/V for frequency doubling of the 10.591 µm radiation.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.388373