S. Das, “Generation of tunable mid-IR radiation by second harmonic in a CdGeAs<sub>2</sub> crystal”, Kvantovaya Elektronika, 2012, Volume 42, Number 3,Pages <nobr>228

This article is cited in 8 papers

Nonlinear optical phenomena

Generation of tunable mid-IR radiation by second harmonic in a CdGeAs₂ crystal

S. Das

Department of Physics, Laser Laboratory, Burdwan University, India

Abstract: Tunable mid-IR radiation is obtained during second harmonic generation of tunable CO₂-laser radiation using a CdGeAs₂ crystal. Its angular tuning characteristics at the CO₂- laser wavelength, angular acceptance angle and spectral acceptance are measured. For second harmonic generation at 10.6 mm, the conversion efficiency in the CdGeAs₂ crystal is 90 times higher than that in the ZnGeP₂ crystal.

Keywords: tunable CO₂ laser, second harmonic generation, nonlinear CdGeAs₂ crystal.

PACS: 42.65.-k, 42.65.Ky, 42.70.Mp

Received: 26.07.2011
Revised: 07.11.2011