Zobrazeno 1 - 10
of 104
pro vyhledávání: '"Sergey V Karpeev"'
Publikováno v:
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, Vol 16, Iss 4, Pp 162-170 (2012)
We propose a new approach to generating a pair of initial beams for a polarization converter that operates by summing up two opposite-sign circularly polarized beams. The conjugated pairs of vortex beams matched with laser modes are generated using b
Externí odkaz:
https://doaj.org/article/cc201964f3b24182b7df4c48c931122a
Publikováno v:
Photonics, Vol 11, Iss 5, p 478 (2024)
Interference of two and four light beams with linear or circular polarization is studied analytically and numerically based on the Richards–Wolf formalism. We consider such characteristics of the interference fields as the distribution of intensity
Externí odkaz:
https://doaj.org/article/3fac3ad9a4c541c586411d9df8024025
Autor:
Svetlana N. Khonina, Alexey P. Porfirev, Sergey G. Volotovskiy, Andrey V. Ustinov, Sergey V. Karpeev
Publikováno v:
Photonics, Vol 10, Iss 8, p 941 (2023)
We propose a method for generating three-dimensional light fields with given intensity and phase distributions using purely phase transmission functions. The method is based on a generalization of the well-known approach to the design of diffractive
Externí odkaz:
https://doaj.org/article/633ee45cbc454eceb19f1d74d68979fa
Autor:
Dmitry A. Savelyev, Sergey V. Karpeev
Publikováno v:
Photonics, Vol 10, Iss 2, p 117 (2023)
Three-dimensional (3D) microstructures used in the formation of optical traps on the optical axis in the near diffraction zone are calculated and studied. Subwavelength, variable-height annular gratings (a lattice period of 1.05λ) with a standard an
Externí odkaz:
https://doaj.org/article/1573740a04de4aafa8d6ff04f86562ae
Publikováno v:
Photonics, Vol 10, Iss 2, p 125 (2023)
We consider the formation of forked diffraction gratings on the surface of a multilayer structure based on chalcogenide glass semiconductors As2S3 and a-Se is. The distribution of electric field components upon interference of beams with different po
Externí odkaz:
https://doaj.org/article/77135963c43f4cefbcc732b55f850ad5
Autor:
Alexey P. Porfirev, Svetlana N. Khonina, Nikolay A. Ivliev, Sergey A. Fomchenkov, Denis P. Porfirev, Sergey V. Karpeev
Publikováno v:
Sensors, Vol 23, Iss 1, p 112 (2022)
The polarization sensitivity of azopolymers is well known. Therefore, these materials are actively used in many applications of photonics. Recently, the unique possibilities of processing such materials using a structured laser beam were demonstrated
Externí odkaz:
https://doaj.org/article/df15a949ac164466ad6da1158fc57a85
Autor:
Sergey V. Karpeev, Vladimir V. Podlipnov, Svetlana N. Khonina, Nikolay A. Ivliev, Sofia V. Ganchevskay
Publikováno v:
Sensors, Vol 22, Iss 3, p 890 (2022)
We propose to achieve multichannel information transmission in free space by means of variously polarized beams. The interaction of vortex beams of various orders with the main polarization states is theoretically analyzed. The passage of beams with
Externí odkaz:
https://doaj.org/article/f225d9d949f44cee8f44b9147d7383e5
Publikováno v:
Sensors, Vol 21, Iss 9, p 2988 (2021)
We report an atmospheric multichannel data transmission system with channel separation by vortex beams of various orders, including half-integer values. For the demultiplexing of the communication channels, a multichannel diffractive optical element
Externí odkaz:
https://doaj.org/article/fb94a8e42e314a7ca358fee81d5f045c
Publikováno v:
Sensors, Vol 20, Iss 14, p 3850 (2020)
We propose a new type of a wavefront aberration sensor, that is, a Zernike matched multichannel diffractive optical filter, which performs consistent filtering of phase distributions corresponding to Zernike polynomials. The sensitivity of the new se
Externí odkaz:
https://doaj.org/article/6dc9fbb6e0dd45248218b50eb51ae1cb
Publikováno v:
Optical Technologies for Telecommunications 2021.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::297dac8dd4d21ec4d4c1b5de250ef4e6
https://doi.org/10.1117/12.2631690
https://doi.org/10.1117/12.2631690