Open AccessDependence on excitation polarization and crystal orientation for terahertz radiation generation in a BaGa4Se7 crystal
Author(s) -
Brett N. Carnio,
Eric Hopmann,
Kevin T. Zawilski,
Peter G. Schunemann,
A. Y. Elezzabi
Publication year - 2020
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.393410
Subject(s) - optical rectification , terahertz radiation , polarization (electrochemistry) , optics , crystal (programming language) , excitation , materials science , rectification , optoelectronics , radiation , infrared , physics , laser , nonlinear optics , chemistry , quantum mechanics , computer science , programming language , power (physics)
Optical rectification is experimentally investigated in a biaxial BaGa 4 Se 7 crystal by considering various combinations of near-infrared excitation polarizations and crystal orientations. The highest terahertz radiation is produced along the Z crystallo-physical direction of the BaGa 4 Se 7 crystal. Despite the optical complexity of the BaGa 4 Se 7 crystal in the terahertz spectral regime, this systematic experimental investigation determines the optimal excitation polarization and crystal orientation for the optical rectification process.