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Proceedings Paper

Behavior of asymmetric Bessel beam in focal plane of high numerical aperture objective
Author(s): Sergey S. Stafeev; Victor V. Kotlyar; Alexey P. Porfirev
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Paper Abstract

Tight focusing of a linearly-polarized asymmetric Bessel beam, which has a crescent profile, was investigated numerically and experimentally. FDTD calculations show that a binary zone plate of numerical aperture NA = 0.995 forms a crescent in the focal plane, which is rotated clockwise around the optical axis, moving away from the focal plane. Using the Debye formulae it was shown that a direction of polarization of incident light has a significant influence on intensity distribution in focal plane. The crescent in the focal plane was also observed experimentally by focusing of the asymmetric Bessel beam using an immersive objective (NA = 1.25).

Paper Details

Date Published: 21 April 2016
PDF: 9 pages
Proc. SPIE 9917, Saratov Fall Meeting 2015: Third International Symposium on Optics and Biophotonics and Seventh Finnish-Russian Photonics and Laser Symposium (PALS), 991736 (21 April 2016); doi: 10.1117/12.2229749
Show Author Affiliations
Sergey S. Stafeev, Image Processing Systems Institute (Russian Federation)
Samara State Aerospace Univ. (Russian Federation)
Victor V. Kotlyar, Image Processing Systems Institute (Russian Federation)
Samara State Aerospace Univ. (Russian Federation)
Alexey P. Porfirev, Image Processing Systems Institute (Russian Federation)
Samara State Aerospace Univ. (Russian Federation)


Published in SPIE Proceedings Vol. 9917:
Saratov Fall Meeting 2015: Third International Symposium on Optics and Biophotonics and Seventh Finnish-Russian Photonics and Laser Symposium (PALS)
Elina A. Genina; Valery V. Tuchin; Vladimir L. Derbov; Dmitry E. Postnov; Igor V. Meglinski; Kirill V. Larin; Alexander Borisovich Pravdin, Editor(s)

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