Complete dispersion analysis of single crystal yttrium orthosilicate

A single crystal of yttrium orthosilicate was investigated by FFIR-spectroscopy in the spectral region of 150-2000 cm(-1) to properly characterize this laser medium. The five reflection spectra of the crystal in principal orientation were evaluated by dispersion analysis and with the dispersion parameters the dielectric tensor function was obtained. Based on the dielectric tensor function the refractive and absorption indices as example for the optical properties were calculated.