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arXiv · 0809.0756

Emission of Terahertz Radiation from SiC

Jared H. Strait·Paul A. George·Jahan Dawlaty·Shriram Shivaraman·Mvs Chandrashekhar·Farhan Rana·Michael G. Spencer
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Abstract

We report the emission of strong coherent broadband terahertz radiation from 6H-Silicon-Carbide (SiC) excited with optical pulses. The measured terahertz spectral signal-to-noise ratio is better than one thousand. We determine that the terahertz radiation is generated via second order optical nonlinearity (optical rectification). We present a measurement of the ratio of nonlinear susceptibility tensor elements $χ_{zzz}^{(2)}/χ_{zxx}^{(2)}$ and the complex index of refraction of silicon carbide at THz frequencies.

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Jared H. Strait, Paul A. George, Jahan Dawlaty, Shriram Shivaraman, Mvs Chandrashekhar, Farhan Rana, Michael G. Spencer. 2009-05-13. Emission of Terahertz Radiation from SiC. https://doi.org/10.1063/1.3194152

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