Formation of beams with nonuniform polarisation of radiation in a cw waveguide terahertz laser

Autor: O. V. Gurin, Maxim Legenkiy, V. N. Ryabykh, V. S. Senyuta, N. N. Dubinin, Vyacheslav A Maslov, K. I. Muntean, A. V. Degtyarev
Rok vydání: 2021
Předmět:
Zdroj: Quantum Electronics. 51:338-342
ISSN: 1468-4799
1063-7818
DOI: 10.1070/qel17511
Popis: 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.
Databáze: OpenAIRE