Статья

High-Order Harmonics Generation in MoS2 Transition Metal Dichalcogenides: Effect of Nickel and Carbon Nanotube Dopants

Mottamchetty VenkateshDepartment of Materials Science and Engineering, Uppsala University, P.O. Box 35, SE-75103 Uppsala, SwedenVyacheslav V. KimGPL Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaGanjaboy S. BoltaevFaculty of Physics and Matematics, Chirchik State Pedagogical University, 104 Amir Temur, Chirchik 111700, UzbekistanSrinivasa Rao KondaGPL Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaPeter SvedlindhDepartment of Materials Science and Engineering, Uppsala University, P.O. Box 35, SE-75103 Uppsala, SwedenWei LiGPL Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaR. A. GaneevDepartment of Physics, Voronezh State University, 394006 Voronezh, Russia

International Journal of Molecular Sciencesjournal2023en

ABI

Аннотация

The transition metal dichalcogenides have instigated a lot of interest as harmonic generators due to their exceptional nonlinear optical properties. Here, the molybdenum disulfide (MoS2) molecular structures with dopants being in a plasma state are used to demonstrate the generation of intense high-order harmonics. The MoS2 nanoflakes and nickel-doped MoS2 nanoflakes produced stronger harmonics with higher cut-offs compared with Mo bulk and MoS2 bulk. Conversely, the MoS2 with nickel nanoparticles and carbon nanotubes (MoS2-NiCNT) produced weaker coherent XUV emissions than other materials, which is attributed to the influence of phase mismatch. The influence of heating and driving pulse intensities on the harmonic yield and cut-off energies are investigated in MoS2 molecular structures. The enhanced coherent extreme ultraviolet emission at ~32 nm (38 eV) due to the 4p-4d resonant transitions is obtained from all aforementioned molecular structures, except for MoS2-NiCNT.

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Темы

Laser-Matter Interactions and Applications Advanced Fiber Laser Technologies Nonlinear Optical Materials Studies

Идентификаторы

DOI: 10.3390/ijms24076540

Цитирования и источники

Цитирований: 3 Использованных источников: 66

Показатели — AkademScholar