Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Alexandra A. Savelyeva"'
Publikováno v:
Micromachines, Vol 13, Iss 12, p 2227 (2022)
In optical computing machines, data can be transmitted by optical vortices, and the information can be encoded by their topological charges. Thus, some optical mechanisms are needed for performing simple arithmetic operations with the topological cha
Externí odkaz:
https://doaj.org/article/fc0b4ceaabbf4292856732a747177241
Publikováno v:
Photonics, Vol 9, Iss 10, p 708 (2022)
We introduce and investigate a novel Laguerre-Gaussian (LG) beam, different from the conventional modal LG beams, which conserve the transverse intensity structure (up to scale) on propagation. The proposed beam does not conserve its structure on fre
Externí odkaz:
https://doaj.org/article/bbd2e5236d7e4511ae367db68b055f66
Publikováno v:
Photonics, Vol 9, Iss 7, p 496 (2022)
We show that a product of two Laguerre–Gaussian (pLG) beams can be expressed as a finite superposition of conventional LG beams with particular coefficients. Based on such an approach, an explicit relationship is derived for the complex amplitude o
Externí odkaz:
https://doaj.org/article/ab38fd8e5ba54b85b54f5e767159f7cb
Publikováno v:
Optical Technologies for Telecommunications 2021.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4a4914013f654d36650b086fc493ddc
https://doi.org/10.1117/12.2631734
https://doi.org/10.1117/12.2631734
Publikováno v:
Optical Technologies for Telecommunications 2020.
In this paper, comparative modeling of optical vortices focusing by phase and amplitude zone plates is presented. The FullWAVE software package based on finite difference time domain method was used for numerical simulation. The linearly polarized Ga
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aaf0399695595b99f19c70278125816b
https://doi.org/10.1117/12.2592799
https://doi.org/10.1117/12.2592799
Publikováno v:
Journal of Biomedical Photonics & Engineering. 7:030304
In this paper, the light focusing by dielectric microcylinders with several layers was numerically studied by using the finite element method implemented in COMSOL Multiphysics. Different materials for the top layer were proposed during the research
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce5bda18575bc79c64a4b69debc6139a
https://doi.org/10.18287/jbpe21.07.030304
https://doi.org/10.18287/jbpe21.07.030304