2012•Quantum ElectronicsOpen access

Generation of tunable mid-IR radiation by second harmonic in a CdGeAs2crystal

S. Jerome Das

Abstract

Tunable mid-IR radiation is obtained during second harmonic generation of tunable CO 2 -laser radiation using a CdGeAs 2 crystal. Its angular tuning characteristics at the CO 2 - laser wavelength, angular acceptance angle and spectral acceptance are measured. For second harmonic generation at 10.6 μm, the conversion efficiency in the CdGeAs 2 crystal is 90 times higher than that in the ZnGeP 2 crystal.

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Key concepts: Radiation, Crystal (programming language), Second-harmonic generation, Optics, High harmonic generation, Physics, Atomic physics, Materials science