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High-order harmonics generation under quasi-phase matched conditions in silver, boron, and silver sulfide plasmas of different configurations

R. A. GaneevThe Guo China-US Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences 1 , Changchun 130033, ChinaGanjaboy S. BoltaevChangchun Institute of Optics, Fine Mechanics and PhysicsVyacheslav V. KimThe Guo China-US Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences 1 , Changchun 130033, ChinaP. V. RedkinChangchun Institute of Optics, Fine Mechanics and PhysicsChunlei GuoThe Guo China-US Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences 1 , Changchun 130033, China

2019en

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ABI

Annotatsiya

The application of advanced methods for high-order harmonics enhancement allows the formation of conditions for phase matching of the generated harmonics in different ranges of extreme ultraviolet. We demonstrate quasi-phase matching (QPM) of the high-order harmonics generated in the plasmas containing silver microparticles and atoms, and silver sulfide molecules. The groups of harmonics in the range of 30th to 40th orders at QPM conditions prevail over the lower orders of harmonics. In most cases, the lower-order harmonics disappeared from the generated spectra at QPM conditions. The 22× enhancement factor of QPM harmonics and the 3 × 10−5 conversion efficiency for a maximally enhanced harmonic were demonstrated in the case of silver microparticle-contained plasma in the 47–67 eV energy range.

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Identifikatorlar

DOI: 10.1063/1.5089223

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