Frequency conversion of mid-IR lasers into the long-wavelength domain of 12-20 µm with AgGaSe2, BaGa2GeSe6 and PbIn6Te10 nonlinear crystals

Autor: Andrey A. Ionin, I. O. Kinyaevskiy, Dmitrii Badikov, A. Yu. Kozlov, Yu. M. Klimachev, Andrei A. Kotkov, Valery V. Badikov, Dmitry V. Sinitsyn, A.M. Sagitova, O. A. Rulev
Rok vydání: 2019
Předmět:
Zdroj: Optics Express. 27:24353
ISSN: 1094-4087
DOI: 10.1364/oe.27.024353
Popis: Difference frequency generation under mixing of repetitively-pulsed CO- and CO2-laser radiation in AgGaSe2, BaGa2GeSe6 and PbIn6Te10 nonlinear crystals was studied. Efficiency and refractive indices were examined for this frequency conversion into the long-wave domain of ∼12-20 µm in the mid-IR. The highest frequency conversion efficiency of 10-4 was obtained for a relatively new PbIn6Te10 crystal, which is an order of magnitude higher than previous results.
Databáze: OpenAIRE