Results of numerical simulation of light wave scattering on conical dielectric micron particles shaped as axicons and on combined particles shaped as truncated cones with adjacent hemispheres in the near field (photonic nanojet) region are presented. The spatial dimensions and the intensity of the photonic nanojets from particles with different spatial orientations are investigated. It is first shown that a combination of spherical and conical focusing in combined particles allows highly localized photonic nanojets to be formed with the peak intensity exceeding by several times the peak intensity for isolated microaxicons.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 7, pp. 29–35, July, 2015.
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Geintz, Y.E., Zemlyanov, A.A. & Panina, E.K. Photonic Nanonanojets from Nonspherical Dielectric Microparticles. Russ Phys J 58, 904–910 (2015). https://doi.org/10.1007/s11182-015-0589-3
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DOI: https://doi.org/10.1007/s11182-015-0589-3