Effective nonlinearity of the new quaternary chalcogenide crystal BaGa2GeSe6

Effective nonlinearity of the new quaternary chalcogenide crystal BaGa2GeSe6

The unknown magnitude and relative signs of the trigonal crystal BaGa2GeSe6 nonlinear coefficients have hindered defining an optimum orientation for maximum frequency conversion efficiency. This issue is resolved in the present work, obtaining ð''11 = +23.6, ð''22 = − 18.5, and...

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Veröffentlicht in:Optics letters 2020-04, Vol.45 (8), p.2136-2139
Hauptverfasser: Kato, Kiyoshi, Badikov, Valeriy V, Wang, Li, Panyutin, Vladimir L, Mitin, Konstantin V, Miyata, Kentaro, Petrov, Valentin
Format: Artikel
Sprache:eng
Schlagworte:
Crystal structure
Nonlinearity
Second harmonic generation
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Zusammenfassung:The unknown magnitude and relative signs of the trigonal crystal BaGa2GeSe6 nonlinear coefficients have hindered defining an optimum orientation for maximum frequency conversion efficiency. This issue is resolved in the present work, obtaining ð''11 = +23.6, ð''22 = − 18.5, and ð''31 = +18.3 pm/V for frequency doubling of the 10.591 µm radiation.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.388373