Terahertz Generation by Optical Rectification in Uniaxial Birefringent Crystals
Document Type
Article
Publication Date
7-16-2012
Abstract
The angular dependence of terahertz (THz) emission from birefringent crystals can differ significantly from that of cubic crystals. Here we consider optical rectification in uniaxial birefringent materials, such as chalcopyrite crystals. The analysis is verified in (110)-cut ZnGeP2 and compared to (zincblende) GaP. Although the crystals share the same nonzero second-order tensor elements, the birefringence in chalcopyrite crystals cause the pump pulse polarization to evolve as it propagates through the crystal, resulting in a drastically different angular dependence in chalcopyrite crystals. The analysis is extended to {012}- and {114}-cut chalcopyrite crystals and predicts more efficient conversion for the {114} crystal cut over the {012}- and {110}-cuts. Abstract © OSA.
Source Publication
Optics Express
Recommended Citation
J. D. Rowley, J. K. Wahlstrand, K. T. Zawilski, P. G. Schunemann, N. C. Giles, and A. D. Bristow, "Terahertz generation by optical rectification in uniaxial birefringent crystals," Opt. Express 20, 16968-16973 (2012).
Comments
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