Temporal dynamics of the “photonic jet” from dielectric microparticle illuminated by a laser pulse
Yu.E. Geints, A.A. Zemlyanov, E.K. Panina
Keywords: диэлектрическая микросфера, В«фотонная струяВ», нестационарное рассеяние света, резонансы оптического поля, dielectric microsphere, В«photonic jetВ», time-dependent scattering, resonances of the optical field
Abstract
Transient response in the near-field scattering of a laser pulse on a micron-sized spherical dielectric particle is considered. The spatial area constituting the photonic jet is theoretically investigated and the analysis of the temporal dynamics of jet dimensions as well as of its peak intensity is presented. The jet evolution scenario is shown to include generally the non-resonant and resonant temporal phases; during each phase the photonic jet can change its spatial form and intensity.
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