Zobrazeno 1 - 10
of 15
pro vyhledávání: '"N E Sarkarov"'
Publikováno v:
Moscow University Physics Bulletin. 64:149-154
The mechanism of “flow”-type self-oscillations in a two-component active medium of a flow laser with an unstable resonator is studied. It is shown that this mechanism is associated with the excitation of edge self-oscillatory in-phase perturbatio
Publikováno v:
Quantum Electronics. 36:853-859
It is shown with the help of numerical simulation that various mechanisms of self-oscillation instability exist and self-oscillation perturbations of various types may appear in an unstable resonator with a transverse flow of the active medium and a
Autor:
N E Sarkarov, A. M. Zotov, A. P. Napartovich, A. V. Rodin, V A Gurashvili, S. P. Pavlov, P V Korolenko
Publikováno v:
Quantum Electronics. 31:821-824
The space - time structure of radiation from an industrial electric-discharge, flowing CO{sub 2} laser is studied experimentally. For the optimal design of the optical and gas-dynamic sections, a total suppression of high-frequency radiation fluctuat
Autor:
P A Svotin, S. P. Pavlov, V V Valuev, A I Kutsenko, N E Sarkarov, A. P. Napartovich, V G Naumov
Publikováno v:
Quantum Electronics. 28:213-216
Multimode emission from a powerful cw CO2 laser with a transversely pumped active medium was investigated as a function of phase inhomogeneities, of laser characteristics, and of the type of an unstable cavity. The results obtained were compared with
Publikováno v:
Quantum Electronics. 27:419-423
Numerical simulation is used to investigate the influence of spatially inhomogeneous steady-state pumping on the dynamics of operation of a laser with fast crossflow of the active medium through an unstable cavity. It is shown that, depending on the
Publikováno v:
Quantum Electronics. 25:306-309
Experimental and theoretical investigations were made of the spectral and temporal characteristics of the radiation emitted by a cw fast-flow electric-discharge CO2 laser. A discharge chamber, separate from the cavity, was filled with a nitrogen-heli
Publikováno v:
AIP Conference Proceedings.
The paper presents the results of the first stage of the experimental research of intermediate (barrier) silicon and germanium coating deposition on the substrates not proned to the formation of carbides (steel, titanium, aluminum) by laser ablation.
Publikováno v:
Quantum Electronics. 30:803-805
The effect of a regular phase modulation on the dynamics of variation in spatial characteristics of laser radiation is studied. The conditions and processes of the transformation of phase aberrations to topological wavefront perturbations resulting i
Publikováno v:
SPIE Proceedings.
Results of theoretical and experimental research of the edge reflection effects in the technologic CW C02-laser with flowing active medium are discussed. It is shown, that diminishing reflections at edges of the out coupling mirror essentially improv
Publikováno v:
Quantum Electronics. 28:304-306
The nature and the degree of polarisation of optical radiation from a powerful industrial laser were determined experimentally by a method based on measurement of the absorption of the s and p radiation components with a polarimeter. Special attentio