Second harmonic generation in CdSiP 2

Abstract

A new nonlinear optical crystal, CdSiP₂, has recently been developed and a bulk crystal cut for phase-matching of second harmonic generation from 4.8 to 2.4 μm has been tested. Numerical and theoretical results are presented. Accounting for Fresnel losses, internal conversion efficiency was over 55% at a peak incident irradiance of 56 MW/cm².