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pro vyhledávání: '"A. Abramochkin"'
Autor:
Abramochkin, Denis V., Shamshura, Artem, Dzhumaniiazova, Irina, Pustovit, Oksana B., Mishchenko, Aleksandr A.
Publikováno v:
In Comparative Biochemistry and Physiology, Part A January 2025 299
Autor:
Filatova, Tatiana S., Kuzmin, Vladislav S., Dzhumaniiazova, Irina, Pustovit, Oksana B., Abramochkin, Denis V., Shiels, Holly A.
Publikováno v:
In Chemosphere June 2024 357
Publikováno v:
Компьютерная оптика, Vol 47, Iss 3, Pp 350-360 (2023)
The article investigated conditions for shaping astigmatic-invariant structured Laguerre-Gaussian (LG) beams in the case of simple astigmatism. We have theoretically and experimentally confirmed that the conditions of astigmatic invariance are that t
Externí odkaz:
https://doaj.org/article/fb0af2b84d68415da5f840ec7e914e55
Autor:
Abramochkin, E. G., Razueva, E. V.
We investigate the elliptic umbilic canonical integral with an approach based on a series expansion of its initial distribution shifted to the caustic points. An absolutely convergent integral representation for the elliptic umbilic is obtained. Usin
Externí odkaz:
http://arxiv.org/abs/2011.03672
We found that small perturbations of the optical vortex core in the Laguerre-Gaussian (LG) beams generate a fine structure of the Hermite-Gauss (HG) mode spectrum. Such perturbations can be easily simulated by weak variations of amplitudes and phases
Externí odkaz:
http://arxiv.org/abs/2007.04741
Akademický článek
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Autor:
Abramochkin, Denis V., Filatova, Tatiana S., Kuzmin, Vladislav S., Voronkov, Yuri I., Kamkin, Andre, Shiels, Holly A.
Publikováno v:
In Comparative Biochemistry and Physiology, Part C November 2023 273
Publikováno v:
Photonics, Vol 11, Iss 4, p 312 (2024)
A family of 2D light fields consisting of the product of three Airy functions with linear arguments has been studied theoretically and experimentally. These fields, called three-Airy beams, feature a parameter shift and have a cubic phase and a super
Externí odkaz:
https://doaj.org/article/185025faabd84a34a86a86bd0a1ac432
Publikováno v:
Компьютерная оптика, Vol 46, Iss 6, Pp 853-863 (2022)
In general, a standard Laguerre–Gauss (LG) beam, whose state is given by two quantum numbers (n, 𝓁): the radial number n and the azimuthal number 𝓁 (or the topological charge (TС) of the vortex carried by the LG beam), is unstable with respe
Externí odkaz:
https://doaj.org/article/9203d686958046a9b9c13c2be0a57d01
Publikováno v:
Компьютерная оптика, Vol 46, Iss 6, Pp 872-876 (2022)
We show here that the product of two Laguerre-Gaussian (LG) beams, i.e. double LG beams (dLG), can be represented as finite superposition of conventional LG beams with certain coeffi-cients that are expressed via zero-argument Jacobi polynomials. Thi
Externí odkaz:
https://doaj.org/article/5fc04d58d1174191a4c2364f9a249f88