Zobrazeno 1 - 10
of 20
pro vyhledávání: '"S A Chetkin"'
Autor:
I M Akhmedzhanov, S A Chetkin
Publikováno v:
Quantum Electronics. 41:980-985
We consider a steady-state nonlinear photorefractive surface wave (PR SW) with TE or TM polarisation when the refractive index of the photorefractive crystal (PRC) depends on the strength of the diffusion crystal electric field emerging upon the wave
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d98b46bc3683c2fe8f49703336f3ea10
https://doi.org/10.1070/qe2011v041n11abeh014660
https://doi.org/10.1070/qe2011v041n11abeh014660
Publikováno v:
Quantum Electronics. 26:1014-1017
Techniques for fabrication of multilayer dielectric mirrors with the reflectivity varying over their surfaces are described. They were used at the output of the cavity of a high-power industrial Nd3+:YAG laser to form a beam with a Gaussian or super-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b12b18dbc7cdc3dcd10e27d77cc0e0c
https://doi.org/10.1070/qe1996v026n11abeh000863
https://doi.org/10.1070/qe1996v026n11abeh000863
Autor:
G V Vdovin, S A Chetkin
Publikováno v:
Quantum Electronics. 23:141-145
In this paper we describe the design and fabrication of a deformable quartz laser mirror whose lens power can vary within the range ±4 diopters. It is shown experimentally that controlling the resonator configuration of a solid-state laser with a de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b71f8d26739242ad618d4be69803a7eb
https://doi.org/10.1070/qe1993v023n02abeh002958
https://doi.org/10.1070/qe1993v023n02abeh002958
Publikováno v:
Soviet Journal of Quantum Electronics. 22:1129-1137
Algorithms for reconstructing the wavefront and for cancelling phase distortions of the field of an adaptive-optics phase-conjugating system have been developed. It is assumed that there is a measurement noise and that there are errors in the control
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa5ed4e369e910d159bee4108e118fbf
https://doi.org/10.1070/qe1992v022n12abeh003685
https://doi.org/10.1070/qe1992v022n12abeh003685
Publikováno v:
Soviet Journal of Quantum Electronics. 22:653-658
A description is given of a fast-response automated Hartmann sensor which converts the wavefront into an expansion in terms of the lowest aberrations. This sensor can be used to determine the vectors representing the tilts of the wavefront with a dim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a25fc485cf70db4988f3994967757c29
https://doi.org/10.1070/qe1992v022n07abeh003564
https://doi.org/10.1070/qe1992v022n07abeh003564
Publikováno v:
Soviet Journal of Quantum Electronics. 22:550-557
Algorithms are given for control of the geometric configuration of optical resonators by deformation of reflecting surfaces of two or one of the mirrors in an unstable resonator. Investigations of the characteristics of variable-configuration resonat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::baef94afd34f6c6b07898f5afacc11fd
https://doi.org/10.1070/qe1992v022n06abeh003521
https://doi.org/10.1070/qe1992v022n06abeh003521
Publikováno v:
Soviet Journal of Quantum Electronics. 21:325-330
The approximation of the steady-state phase method is used to describe field formation in an unstable resonator with active mirrors and to derive expressions for the resonator transmission and the phase of the output radiation. An algorithm is sugges
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e56c3d034462e75601c95f3a13f8c87
https://doi.org/10.1070/qe1991v021n03abeh003797
https://doi.org/10.1070/qe1991v021n03abeh003797
Publikováno v:
Soviet Journal of Quantum Electronics. 21:344-348
An analysis was made of the feasibility of constructing a sensor for measuring the tilt of a wavefront based on the dispersion dependence of the transmission of an interface between two transparent media on the angle of incidence. A study was made of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09002e14d42958d58a10fadec14680d9
https://doi.org/10.1070/qe1991v021n03abeh003801
https://doi.org/10.1070/qe1991v021n03abeh003801
Publikováno v:
Soviet Journal of Quantum Electronics. 20:1414-1418
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59b71c88be5dbd26e2bdc36c86772da4
https://doi.org/10.1070/qe1990v020n11abeh007560
https://doi.org/10.1070/qe1990v020n11abeh007560
Autor:
V. V. Ostanin, Victor V. Apollonov, A. S. Brynskikh, A M Prokhorov, G V Vdovin, S. V. Murav'ev, V I Borodin, S A Chetkin
Publikováno v:
Soviet Journal of Quantum Electronics. 20:1403-1406
A prototype of a 19-channel cooled adaptive mirror with magnetostrictive actuators was developed and constructed. An open-porosity cooling system ensured a uniform heat and mass transfer across a heat exchanger. A holographic method for investigating
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b582f63c9daa117b951ead07801180e6
https://doi.org/10.1070/qe1990v020n11abeh007552
https://doi.org/10.1070/qe1990v020n11abeh007552