Zobrazeno 1 - 10
of 621
pro vyhledávání: '"S.N. Khonina"'
Publikováno v:
Компьютерная оптика, Vol 46, Iss 5, Pp 724-732 (2022)
In this paper, we study a change in the propagation trajectory of a set of autofocusing laser beams using a fractional Fourier transform. Clusters of displaced bounded Airy-Gaussian beams supplemented by a phase function that deflects the beam simila
Externí odkaz:
https://doaj.org/article/9bead96149f340d3a6af9ea40c672750
Publikováno v:
Компьютерная оптика, Vol 46, Iss 5, Pp 741-751 (2022)
The work is devoted to the development of the quantum theory of diffractive optical elements. Aspects of quantum optics are considered by the example of light diffraction from a dielectric plate in a resonator. The paper shows the connection between
Externí odkaz:
https://doaj.org/article/6d6d7ca054054663beedd62929110da4
Publikováno v:
Компьютерная оптика, Vol 45, Iss 6, Pp 828-838 (2021)
We propose to use a refractive conical axicon for generating azimutally polarized beams. We investigate polarization states of optical rays passing through an interface between optical media, and also polarization transformation with a refractive axi
Externí odkaz:
https://doaj.org/article/b5d868adee8e45b4b617a842f3175dc9
Publikováno v:
Компьютерная оптика, Vol 45, Iss 4, Pp 525-533 (2021)
The use of a multichannel wavefront sensor matched with phase Zernike functions to determine the type and magnitude of aberration in the analyzed wavefront is investigated. The approach is based on stepwise compensation of wavefront aberrations based
Externí odkaz:
https://doaj.org/article/8d844449a9b14d83816814edb9acea78
Publikováno v:
Компьютерная оптика, Vol 44, Iss 6, Pp 923-930 (2020)
In this work, we carried out training and recognition of the types of aberrations corresponding to single Zernike functions, based on the intensity pattern of the point spread function (PSF) using convolutional neural networks. PSF intensity patterns
Externí odkaz:
https://doaj.org/article/5e469282e53646cab4c956756ffe5f71
Autor:
A.V. Ustinov, S.N. Khonina
Publikováno v:
Компьютерная оптика, Vol 44, Iss 5, Pp 721-727 (2020)
Autofocusing properties of chirp beams with an arbitrary power-law dependence on the radius are studied theoretically and numerically. Two- and three-parameter chirp beams are considered, the parameter variations of which make it possible to effectiv
Externí odkaz:
https://doaj.org/article/8b019710694d40a08405c26cab7f8e3f
Publikováno v:
Компьютерная оптика, Vol 44, Iss 4, Pp 578-581 (2020)
The possibility of constructing a near-infrared atmospheric optical communication system based on a pair of media converters of a signal format 100Base-TX / 1000BASE-T to format 1000BASE-SX / LX with SFP transceivers DEM-310GT was experimentally inve
Externí odkaz:
https://doaj.org/article/180d11eeae5d4dab9bb7a03d83ff8223
Autor:
N.L. Kazanskiy, Samara National Research University, Moskovskoye Shosse 34, 443086, Samara, Russia, S.A. Degtyarev, S.N. Khonina
Publikováno v:
Компьютерная оптика, Vol 44, Iss 3, Pp 295-318 (2020)
Optical sensors are widely used in the biomedical, chemical and food industries. They provide high sensitivity to changes in the refractive index of the environment due to a specific distribution of resonances across the field. The sensitivity of the
Externí odkaz:
https://doaj.org/article/e139f041489e4fda9b39f266bf9a16de
Publikováno v:
Компьютерная оптика, Vol 44, Iss 3, Pp 352-362 (2020)
In this paper, we consider a problem of reconstructing complex coefficients of the coherent su-perposition of Laguerre–Gaussian modes from the field intensity in a plane perpendicular to the propagation axis at a given distance using the Levenberg
Externí odkaz:
https://doaj.org/article/0fa2908d60d346dbb918ce5743c4f56e
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