Computer Optics
RUS  ENG    JOURNALS   PEOPLE   ORGANISATIONS   CONFERENCES   SEMINARS   VIDEO LIBRARY   PACKAGE AMSBIB  
General information
Latest issue
Archive

Search papers
Search references

RSS
Latest issue
Current issues
Archive issues
What is RSS



Computer Optics:
Year:
Volume:
Issue:
Page:
Find






Personal entry:
Login:
Password:
Save password
Enter
Forgotten password?
Register


Computer Optics, 2022, Volume 46, Issue 4, Pages 531–536
DOI: https://doi.org/10.18287/2412-6179-CO-934
(Mi co1043)
 

This article is cited in 3 scientific papers (total in 3 papers)

DIFFRACTIVE OPTICS, OPTICAL TECHNOLOGIES

Comparison of the shape of focal spots in terms of intensity and energy flux for a high-aperture zone plate and a spiral zone plate

A. A. Savelyevaab, E. S. Kozlovaab

a Image Processing Systems Institute of the RAS - Branch of the FSRC "Crystallography and Photonics" RAS, Samara, Russia, Samara
b Samara National Research University
Abstract: Using a finite-difference time-domain method, it has been shown that focal spots generated when tightly focusing a linearly polarized Gaussian beam by a Fresnel zone plate (FZP) and when focusing a Gaussian beam with an embedded optical vortex by a spiral zone plate (SZP) have different patterns of the intensity and energy flux. The most significant differences are observed when the value of the topological charge (TC) is equal to three. The energy flux has an annular distribution when the Gaussian beam is focused by the FZP, while the SZP produces a field whose patterns of intensity and energy flux have three local maxima. The number of local maxima corresponds to the order of the SZP. At a certain distance from the focus, the petal structure of the intensity (and energy flux) changes to a ring distribution.
Keywords: two-layered dielectric microcylinder, photonic nanojet, tight focusing, FDTD-method
Funding agency Grant number
Russian Science Foundation 18-19-00595
Ministry of Science and Higher Education of the Russian Federation
The authors are grateful to V.V. Kotlyar for discussing the results of this study. The work was partly funded the Russian Science Foundation grant #18-19-00595 (Sections “Simulation” and “Discussion”), and the RF Ministry of Science and Higher Education within a state contract with the "Crystallography and Photonics" Research Center of the RAS (Section “Formu-lation of the problem”).
Received: 04.06.2021
Accepted: 05.04.2022
Document Type: Article
Language: Russian
Citation: A. A. Savelyeva, E. S. Kozlova, “Comparison of the shape of focal spots in terms of intensity and energy flux for a high-aperture zone plate and a spiral zone plate”, Computer Optics, 46:4 (2022), 531–536
Citation in format AMSBIB
\Bibitem{SavKoz22}
\by A.~A.~Savelyeva, E.~S.~Kozlova
\paper Comparison of the shape of focal spots in terms of intensity and energy flux for a high-aperture zone plate and a spiral zone plate
\jour Computer Optics
\yr 2022
\vol 46
\issue 4
\pages 531--536
\mathnet{http://mi.mathnet.ru/co1043}
\crossref{https://doi.org/10.18287/2412-6179-CO-934}
Linking options:
  • https://www.mathnet.ru/eng/co1043
  • https://www.mathnet.ru/eng/co/v46/i4/p531
  • This publication is cited in the following 3 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
    Computer Optics
    Statistics & downloads:
    Abstract page:4
    Full-text PDF :1
     
      Contact us:
     Terms of Use  Registration to the website  Logotypes © Steklov Mathematical Institute RAS, 2024