Optical Properties of LiGdF4 Single Crystal in the Terahertz and Infrared Ranges

• DOI: 10.3390/photonics10010084
• Publication Date: 2023-01-12T08:47:01Z
• Authors: Gennady A. Komandin; Sergey P. Lebedev; Stella L. Korableva; Oleg A. Morozov; Vladimir M. Kyashkin; Vadim V. Semashko; Pavel P. Fedorov
• Keywords: Reflection; Terahertz gap; Reflection coefficient

The basic mechanisms of absorption THz range radiation in optically perfect LiGdF4 single crystals were studied using the broadband experimental data and dielectric response function analysis within harmonic oscillator model. polarized IR reflection spectra have allowed one to determine phonon contribution coefficient range, while transmission used obtain birefringence value effects various mulitparticle processes. Additionally, we established optical electrodynamic parameters crystal, which are necessary for design nonlinear devices.