An Improvement of the Cherenkov THz Generation Scheme Using Convex Silicon Prism-Lens Adapters

被引：4
|
作者：
Kitaeva, Galiya Kh. [1 ]
Safronenkov, Daniil A. [1 ]
Starkova, Natalia V. [1 ]
机构：
[1] Lomonosov Moscow State Univ, Fac Phys, Moscow 119991, Russia
来源：
PHOTONICS | 2023年 / 10卷 / 10期
关键词：
terahertz; optical rectification; Cherenkov THz generation; Si prism adaptor; TERAHERTZ-WAVE GENERATION; DIFFERENCE-FREQUENCY-GENERATION; ULTRASHORT LASER-PULSE; OPTICAL RECTIFICATION; RADIATION; CONVERSION;
D O I：
10.3390/photonics10101145
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The terahertz (THz) generation efficiency in the Cherenkov optical rectification scheme can be improved significantly if the silicon adaptor, mounted at the lateral surface of a nonlinear crystal, has a convex output surface with proper geometry. We demonstrate and compare with the results of direct experiments a method for theoretically modeling the angular distributions of the spectral power of THz radiation in the case of different Si adaptors, constructed by mounting plano-spherical lenses on a conventional flat Si prism. The applied method of theoretical modeling shows its usefulness in choosing the best Si adapter geometry.
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页数：9
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