Localized light jets from radially symmetric non–spherical dielectric microparticles
Yu.E. Geints, A.A. Zemlyanov, E.K. Panina
V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, 1, Academician Zuev square, Tomsk, 634021, Russia
Keywords: photonic jet, method of computational electrodynamics, radially symmetric particles
Abstract
The results of numerical modeling of the light wave scattering near field (“photonic (nano)jet” — PNJ area) by radially symmetric nonabsorbing dielectric micron-sized particles are presented. It is shown that the homogeneous silica microparticles of different spatial shape and orientation form PNJ with different dimensions and amplitude parameters. Photonic nanojet from hemispheres possesses high extent but moderate intensity. Using of microaxicons provides for a record increase in the PNJ length of the order of twenty laser wavelength.
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