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Experimental investigation of the self-healing of terahertz Bessel beams with orbital angular momentum
V.S. Pavelyev 1,2, K.N. Tukmakov 1, A.S. Reshetnikov 1, V.V. Gerasimov 3,4, N.D. Osintseva 3,4, B.A. Knyazev 3,4

1 Samara National Research University, 443086, Samara, Russia, Moskovskoye Shosse 34
2 IPSI RAS – Branch of the FSRC "Crystallography and Photonics" RAS,
443001, Samara, Russia, Molodogvardeyskaya 151,
3 Novosibirsk State University, 630090, Russia, Novosibirsk, Pirogovа St., 1,
4 Budker Institute of Nuclear Physics, 630090, Novosibirsk, Russia, Lavrentiev Ave, 11

 PDF, 1759 kB

DOI: 10.18287/2412-6179-CO-845

Pages: 673-677.

Full text of article: Russian language.

Abstract:
Experimental results of the investigation of self-healing properties of terahertz Bessel beams with orbital angular momentum (OAM) with topological charges of l=3 and l=4 in free space after passing through a dispersive medium are presented.

Keywords:
optical vortex, hidden phase, screw dislocation, topological charge.

Citation:
Pavelyev VS, Tukmakov KN, Reshetnikov AS, Gerasimov VV, Osintseva ND, Knyazev BA. Experimental investigation of the self-healing of terahertz Bessel beams with orbital angular momentum. Computer Optics 2021; 45(5): 673-677. DOI: 10.18287/2412-6179-CO-845.

Acknowledgements:
This work was supported by the Russian Science Foundation under grant # 19-72-20202. The experiments were carried out using the infrastructure of the shared research facility "Siberian Synchrotron and Terahertz Radiation Center (SSTRC)'', based on NovoFEL at BINP SB RAS.

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