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, 2015, Volume 39, Issue 1, Pages 45–51 (Mi co54)  

OPTO-IT

Simulation of resonance focusing of a piņosecond pulse by a dielectric microcylinder

E. S. Kozlovaab, V. V. Kotlyarab, S. A. Degtyarevab

a Samara State Aerospace University
b Image Processing Systems Institute, Russian Academy of Sciences

Abstract: Time dependence of the parameters of a focal spot when performing the resonance focusing of a plane TE-wave with a dielectric microcylinder (refractive index $n=1.59$) is investigated using the FDTD-method. It is shown that as the picosecond pulse passes through the cylinder, the focus width decreases, whereas the intensity of the focus increases, as does the energy of light accumulated in the cylinder. Following the pulse propagation, a leaking whispering gallery mode is excited within the cylinder, which is matching a round-wire-fiber mode with zero propagation constant. With time the mode energy is leaking. Solving the Helmholtz equation by a finite element method, the best parameters of the focal spot are shown to be achieved for a cylinder of radius $2.1749\lambda$, with the focal spot size at full width at half maximum of intensity being $0.226\lambda$ and the maximum intensity in the focus being $60$ times the incident light intensity, where $\lambda$ is the incident wavelength.

Keywords: resonance focus, picosecond pulse, whispering gallery mode.

Funding Agency Grant Number
Ministry of Education and Science of the Russian Federation 3970.2014.9
4816.2014.2
Russian Foundation for Basic Research 13-07-97008
14-29-07133
14-07-31218
15-07-01174


DOI: https://doi.org/10.18287/0134-2452-2015-39-1-45-51

Full text: PDF file (677 kB)
Full text: http://www.computeroptics.smr.ru/.../390105.html
References: PDF file   HTML file

Received: 02.02.2015

Citation: E. S. Kozlova, V. V. Kotlyar, S. A. Degtyarev, “Simulation of resonance focusing of a piņosecond pulse by a dielectric microcylinder”, Computer Optics, 39:1 (2015), 45–51

Citation in format AMSBIB
\Bibitem{KozKotDeg15}
\by E.~S.~Kozlova, V.~V.~Kotlyar, S.~A.~Degtyarev
\paper Simulation of resonance focusing of a piņosecond pulse by a dielectric microcylinder
\jour Computer Optics
\yr 2015
\vol 39
\issue 1
\pages 45--51
\mathnet{http://mi.mathnet.ru/co54}
\crossref{https://doi.org/10.18287/0134-2452-2015-39-1-45-51}


Linking options:
  • http://mi.mathnet.ru/eng/co54
  • http://mi.mathnet.ru/eng/co/v39/i1/p45

    SHARE: VKontakte.ru FaceBook Twitter Mail.ru Livejournal Memori.ru


    Citing articles on Google Scholar: Russian citations, English citations
    Related articles on Google Scholar: Russian articles, English articles
  • Computer Optics
    Number of views:
    This page:119
    Full text:33
    References:23

     
    Contact us:
     Terms of Use  Registration  Logotypes © Steklov Mathematical Institute RAS, 2020