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Proceedings Paper

Self-focusing of laser beam in dispersed medium
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Paper Abstract

Water suspension of absorbing nano-sized particles is an example of a medium in which non-linear effects are present at moderate light intensities, which is applicable to optical treatment of biological objects. The experiment was dedicated to the phenomena emerging in a thin layer of such a medium under the action of inhomogeneous light field formed due to the Pearcey diffraction pattern near a microlens focus. In this high-gradient field, the light energy absorbed by the particles induces inhomogeneous distribution of the medium refraction index, which results in observable self-diffraction of the falling light, depending strongly on the medium position with respect to the focus.

Paper Details

Date Published: 17 December 2013
PDF: 6 pages
Proc. SPIE 9066, Eleventh International Conference on Correlation Optics, 90661K (17 December 2013); doi: 10.1117/12.2053868
Show Author Affiliations
Oleg V. Angelsky, Yuriy Fedkovych Chernivtsi National Univ. (Ukraine)
Vira R. Besaga, Yuriy Fedkovych Chernivtsi National Univ. (Ukraine)
Andrew P. Maksimyak, Yuriy Fedkovych Chernivtsi National Univ. (Ukraine)


Published in SPIE Proceedings Vol. 9066:
Eleventh International Conference on Correlation Optics
Oleg Vyacheslavovich Angelsky, Editor(s)

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