Title :
Pump polarization dependence of optical rectification for 112A GaAs
Author :
Mabon, J. ; Bleasdale, C. ; Lewis, R.A.
Author_Institution :
Inst. for Supercond. & Electron. Mater., Univ. of Wollongong, Wollongong, NSW, Australia
Abstract :
A general theory for the pump polarization angle dependence of optical rectification has been constructed. Measurements have been taken of a 112A GaAs sample and compared to this theory. The terahertz radiation generated is a mixture of bulk (second order) and surface (third order) contributions. From this data, and a previous investigation into the azimuthal angle dependence of these samples, a value of the β term in the third order non-linear polarization can be obtained.
Keywords :
III-V semiconductors; gallium arsenide; laser beams; light polarisation; optical pumping; GaAs; azimuthal angle dependence; bulk contributions; general theory; optical rectification; pump polarization angle dependence; surface contributions; terahertz radiation; Azimuthal angle; Crystals; Gallium arsenide; Nonlinear optics; Optical polarization; Optical pumping; Stimulated emission;
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on
Conference_Location :
Tucson, AZ
DOI :
10.1109/IRMMW-THz.2014.6956064
