Submillimeter-wave generation with ZnGeP2 crystals

摘要

Abstract: This paper describes detailed analysis of optical and dielectric properties of ZnGeP$-2$/ crystals in middle IR and FIR spectral ranges, and also first experimental results on 1 W level 102 - 110 $mu@m emission generation by means of difference frequency generation of CO$-2$/ laser line pairs. It is shown that MW level is achievable now, and AgIn$- 0.35$/Ga$-0.65$/Se$-2$/ crystal can be used for efficient generation of FIR emission.!7