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Formation of beams with nonuniform polarisation of radiation in a cw waveguide terahertz laser
Quantum Electronics ( IF 0.9 ) Pub Date : 2021-03-30 , DOI: 10.1070/qel17511
O.V. Gurin , A.V. Degtyarev , N.N. Dubinin , M.N. Legenkiy , V.A. Maslov , K.I. Muntean , V.N. Ryabykh , V.S. Senyuta

A method for obtaining non-Gaussian light beams with azimuthal field polarisation in a waveguide quasi-optical cavity is described. The method is based on the employment of polarisation-selective diffraction structures as laser mirrors. Efficient excitation of such beams at the output from an optically pumped waveguide HCOOH laser (λ = 0.4326 mm) with an inhomogeneous reflecting input and semitransparent output mirrors is confirmed theoretically and experimentally.



中文翻译:

连续波导太赫兹激光器中辐射偏振不均匀光束的形成

描述了一种在波导准光腔中获得具有方位场偏振的非高斯光束的方法。该方法基于使用偏振选择性衍射结构作为激光镜。在理论上和实验上证实了在具有不均匀反射输入和半透明输出镜的光泵浦波导 HCOOH 激光器 ( λ = 0.4326 mm) 的输出端对此类光束的有效激发。

更新日期:2021-03-30
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