Abstract:
We consider the possibility of generation of broadband terahertz (THz) radiation upon reflection of a p-polarised femtosecond laser pulse from the surface of a semi-metal. The hydrodynamic model of an instantaneous quadratic response of metals is generalised, and analytical results and numerical simulation data are presented. It is shown that transition from highly conductive metals to semi-metals is accompanied by a significant increase in the efficiency of the THz signal generation due to the reduction of the effective charge carrier mass and attenuation of the shielding of optical and THz fields.
Citation:
V. A. Mironov, I. V. Oladyshkin, D. A. Fadeev, “Optical-to-THz radiation conversion on a semi-metal surface”, Kvantovaya Elektronika, 46:8 (2016), 753–758 [Quantum Electron., 46:8 (2016), 753–758]
Linking options:
https://www.mathnet.ru/eng/qe16444
https://www.mathnet.ru/eng/qe/v46/i8/p753
This publication is cited in the following 9 articles:
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Quantum Electron., 49:8 (2019), 788–795
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I. Oladyshkin, D. Fadeev, V. Mironov, I. Ilyakov, B. Shishkin, V. Chernov, A. Okhapkin, P. Yunin, R. Akhmedzhanov, Proceedings of International Conference on Metamaterials and Nanophotonics (Metanano-2017), AIP Conf. Proc., 1874, Amer. Inst. Phys., 2017, UNSP 030028