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Proceedings Paper

Experimental investigation of complex circular Airy beam characteristics
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Paper Abstract

We demonstrate a new type of circular Airy beams, the so-called azimuthally modulated circular Airy beams, generated by utilizing a diffraction element, whose transmission function is the sum of the transmission function of the element generating a “petal” pattern and the transmission function of the element generating a circular Airy beam. We experimentally investigate the propagation dynamics of such beams and demonstrate that their autofocusing and selfhealing properties are strongly dependent on the number of generated petals. These beams are a combination of a conventional circular Airy beam and vortex laser beams (or their superpositions). Using a spatial light modulator, we demonstrate that these beams have unique properties such as autofocusing, "nondiffractive" propagation and self-healing after passing through an obstacle. The experimental results are in good agreement with the simulation. We believe that these results can be very useful for lensless laser fabrication and laser manipulation techniques, as well as for development of new filament plasma multi-channel formation methods.

Paper Details

Date Published: 26 April 2018
PDF: 7 pages
Proc. SPIE 10717, Saratov Fall Meeting 2017: Laser Physics and Photonics XVIII; and Computational Biophysics and Analysis of Biomedical Data IV, 107170Q (26 April 2018); doi: 10.1117/12.2315202
Show Author Affiliations
A. P. Porfirev, Samara National Research Univ. (Russian Federation)
Image Processing Systems Institute (Russian Federation)
S. A. Fomchenkov, Samara National Research Univ. (Russian Federation)
Image Processing Systems Institute (Russian Federation)
S. N. Khonina, Samara National Research Univ. (Russian Federation)
Image Processing Systems Institute (Russian Federation)


Published in SPIE Proceedings Vol. 10717:
Saratov Fall Meeting 2017: Laser Physics and Photonics XVIII; and Computational Biophysics and Analysis of Biomedical Data IV
Vladimir L. Derbov; Dmitry Engelevich Postnov, Editor(s)

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