Ellipsometric determination of the optical anisotropy of gallium selenide

Abstract

The optical constants nx, kx, nz, and kz of the uniaxial compound GaSe have been determined in the energy region 2–5 eV (wavelength region 240–700 nm) using ellipsometric measurements on a plane perdendicular to the optic axis (the cleavage plane) and a plane parallel to this axis.