Frequency down-conversion of multiline CO laser into the THz range with ZnGeP2 crystal
| Autor: | Adily M. Sagitova, Jean-Francois Lampin, Yury M. Klimachev, Andrey A. Ionin, I. O. Kinyaevskiy |
|---|---|
| Přispěvatelé: | P. N. Lebedev Physical Institute of the Russian Academy of Sciences [Moscow] (LPI RAS), Russian Academy of Sciences [Moscow] (RAS), Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), Photonique THz - IEMN (PHOTONIQUE THz - IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF), PCMP CHOP, Photonique THz - IEMN (PHOTONIQ THz - IEMN) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Range (particle radiation) Frequency generation Materials science business.industry Terahertz radiation Down conversion Laser 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention 010309 optics Crystal [SPI]Engineering Sciences [physics] Frequency conversion law 0103 physical sciences [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic Optoelectronics Electrical and Electronic Engineering business Absorption (electromagnetic radiation) ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Optical and Quantum Electronics Optical and Quantum Electronics, 2020, 52 (1), pp.4985. ⟨10.1007/s11082-019-2116-1⟩ Optical and Quantum Electronics, Springer Verlag, 2020, 52 (1), pp.4985. ⟨10.1007/s11082-019-2116-1⟩ |
| ISSN: | 0306-8919 1572-817X |
| DOI: | 10.1007/s11082-019-2116-1⟩ |
| Popis: | Frequency down-conversion (difference frequency generation) of a multiline Q-switched CO laser with a ZnGeP2 crystal was numerically studied. Two options of the CO laser spectrum were considered: “narrow” (44 lines) and “broad” (150 lines) ones. An influence of the ZnGeP2 crystal absorption on THz generation was taken into account and was shown to be significant. It affected optimal phase-matching angle, THz spectrum and frequency conversion efficiency, which were optimized by the crystal length. Maximal frequency conversion efficiency of 0.007% was numerically obtained for the “narrow” spectrum due to less influence of the crystal absorption. |
| Databáze: | OpenAIRE |
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