Prospects of Semiconductor Terahertz Pulse Sources

Polonyi, Gyula and Mechler, Matyas I. and Hebling, Janos and Fulop, Jozsef A. (2017) Prospects of Semiconductor Terahertz Pulse Sources. IEEE JOURNAL ON SELECTED TOPICS IN QUANTUM ELECTRONICS, 23 (4). pp. 1-8. ISSN 1077-260X


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Extremely high pump-to-terahertz (THz) conversion efficiencies up to 0.7% were demonstrated in recent experiments with ZnTe THz pulse sources. Such high efficiencies could be achieved by pumping at an infrared wavelength sufficiently long to suppress both two- and three-photon absorption and the associated free-carrier absorption at THz frequencies. Here, high-field high-energy THz pulse generation by optical rectification in semiconductor nonlinear materials is investigated by numerical simulations. Basic design aspects of infrared-pumped semiconductor THz sources are discussed. Optimal pumping and phase-matching conditions are given. Multicycle THz pulse generation for particle acceleration is discussed.

Item Type: Article
Subjects: Q Science / természettudomány > QC Physics / fizika > QC02 Optics / fénytan
Depositing User: Gabor Almasi
Date Deposited: 08 Mar 2018 08:53
Last Modified: 08 Mar 2018 08:53

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