Zobrazeno 1 - 10 of 12 pro vyhledávání: '"S. S. Chesnokov"'
2
Aperture tagging based on transient parameters of an optical field in a nonlinear medium
Autor: S. S. Chesnokov, Fedor Yu Kanev
Publikováno v: Soviet Journal of Quantum Electronics. 20:520-521
An aperture tagging algorithm was used in a numerical analysis of the efficiency of adaptive focusing of laser beams under conditions of transient wind refraction. The time needed for the optimization of the beam parameters was reduced by control, in
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6472a1705975688b4c9250e95a332e04
https://doi.org/10.1070/qe1990v020n05abeh006467
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3
Focusing of optical beams by elastic deformable mirrors
Autor: S. S. Chesnokov
Publikováno v: Radiophysics and Quantum Electronics. 30:890-896
The finite-element method is used to model an elastic mirror which is deformed at predetermined points. We consider a phase corrector consisting of a square mirror with four actuators, simply supported at its center. The mirror size and actuator conf
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::703a2269a95d48f0db76bf004266d5aa
https://doi.org/10.1007/bf01034851
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5
Compensation of thermal defocusing by a three-element adaptive corrector
Autor: S S Chesnokov
Publikováno v: Soviet Journal of Quantum Electronics. 13:742-745
A numerical simulation of a slow adaptive optical system is reported. It is suggested that the wavefront of a beam can be controlled by a phase corrector with three degrees of freedom: the angle of inclination of the beam and two focusing radii along
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::15c4378477fda8db6de99a36c336f6a3
https://doi.org/10.1070/qe1983v013n06abeh004281
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7
Correction of nonlinear distortions of light beams by an optical system with feedback
Autor: M. A. Vorontsov, S. S. Chesnokov
Publikováno v: Soviet Physics Journal. 23:844-849
The operation of a phase-conjugate COAT system under conditions of thermal self-interaction is investigated. The analogy between the phase conjugation and optimal focusing algorithms is discussed. A method is proposed for raising the stability of the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a3c6cf54124185a03fb09cc933730e2d
https://doi.org/10.1007/bf00892252
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10
Aperture tagging in focusing of high-power light beams in the presence of fluctuations of the wind velocity along the beam path
Autor: K D Egorov, S S Chesnokov
Publikováno v: Soviet Journal of Quantum Electronics. 17:808-810
A numerical investigation is reported of the propagation of a light beam in a medium with large-scale fluctuations of the wind velocity. An analysis is made of the control of the beam wavefront by aperture tagging of the lowest aberrations. The Monte
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4718ebe050cd1bcec7cdad03c51a6569
https://doi.org/10.1070/qe1987v017n06abeh009365
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