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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Abstract
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 |
| URI: | http://real.mtak.hu/id/eprint/77892 |
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