Measurement of X(2) components by comparing polarization-resolved second-order cascade processes

摘要

Cascade third-harmonic generation proves to be a versatile tool to access $chi$+(2)$/ tensor components. Wherever cascade third-harmonic generation allows an interference between two second order processes, it will be able to determine ratios of tensor components. We give a full account for orthorhombic class mm2. Given is a discussion of trigonal classes. Polarization-resolved signal of cascade third-harmonic generation in LBO crystal has been recorded and analyzed.