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Control of transverse mode content and polarization structure of terahertz coherent beams

V.S. Pavelyev1,2, Yu.Yu. Choporova3,4, N.D. Osintseva3,4, K.N. Tukmakov1,2, B.A. Knyazev3,4

1 Samara National Research University, Moskovskoye Shosse 34, 443086, Samara, Russia,
2 IPSI RAS – Branch of the FSRC "Crystallography and Photonics" RAS,
Molodogvardeyskaya 151, 443001, Samara, Russia,
3 Budker Institute of Nuclear Physics of SB RAS, Novosibirsk, Russia,
4 Novosibirsk State University, Novosibirsk, Russia

 PDF, 1290 kB

DOI: 10.18287/2412-6179-2019-43-6-1103-1108

Pages: 1103-1108.

Full text of article: Russian language.

Abstract:
The paper is devoted to investigation of forming multimode coherent beams of terahertz radiation with pre-given transverse mode content and terahertz vector beams by use of silicon diffractive optical elements forming single modes from terahertz free-electron laser illuminating beam.

Keywords:
diffractive optics, Free-electron lasers, terahertz radiation, Gaussian-Hermite modes.

Citation:
Pavelyev VS, Choporova YuYu, Osintseva ND, Tukmakov KN, Knyazev BA. Control of transverse mode content and polarization structure of terahertz coherent beams. Computer Optics 2019; 43(6): 1103-1108. DOI: 10.18287/2412-6179-2019-43-6-1103-1108.

Acknowledgements:
This work was supported by the grant of the RSF ##19-72-20202 regarding the experimental scheme for the formation of multimode beams with the given transverse-mode composition. The work was partly funded by the Russian Federation Ministry of Science and Higher Education within a state contract with the “Crystallography and Photonics” # 007-ГЗ/Ч3363/26 regarding the analysis of experimental results. Experiments were carried out using the shared research center “Siberian Synchrotron and Terahertz Radiation Centre” at the Novosibirsk FEL facility.

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