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Kvantovaya Elektronika, 2001, Volume 31, Number 9, Pages 821–824 (Mi qe2053)  

This article is cited in 1 scientific paper (total in 1 paper)

Control of laser radiation parameters

Space – time structure of radiation from a high-power fast-flow CO2 laser

V. A. Gurashvilia, A. M. Zotovb, P. V. Korolenkob, A. P. Napartovicha, S. P. Pavlova, A. V. Rodina, N. E. Sarkarova

a Troitsk Institute for Innovation and Fusion Research
b Faculty of Physics, Lomonosov Moscow State University

Abstract: The space – time structure of radiation from an industrial electric-discharge, flowing CO2 laser is studied experimentally. For the optimal design of the optical and gas-dynamic sections, a total suppression of high-frequency radiation fluctuations and a lowering of the amplitude of low-frequency fluctuations down to 6% – 10% were observed with increasing output power. At the same time, the intensity distribution in the near-field diffraction zone was complicated and unstable. 'Hot' spots and screw wave-front dislocations were observed in the laser-beam cross section. Numerical simulations showed that the properties of the near-field radiation structure are determined by random caustics and phase singularities formed due to the diffraction transformation of the initial wave-front perturbations.

Full text: PDF file (177 kB)

English version:
Quantum Electronics, 2001, 31:9, 821–824

Bibliographic databases:

PACS: 42.55.Lt, 42.60.Jf, 42.60.Cf
Received: 08.02.2001

Citation: V. A. Gurashvili, A. M. Zotov, P. V. Korolenko, A. P. Napartovich, S. P. Pavlov, A. V. Rodin, N. E. Sarkarov, “Space – time structure of radiation from a high-power fast-flow CO2 laser”, Kvantovaya Elektronika, 31:9 (2001), 821–824 [Quantum Electron., 31:9 (2001), 821–824]

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    This publication is cited in the following articles:
    1. Quantum Electron., 42:7 (2012), 616–624  mathnet  crossref  adsnasa  isi  elib
  • Квантовая электроника Quantum Electronics
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