14 May 2010 Near field dielectric microlenses
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Abstract
The electromagnetic backscattered response of a metallic nanoparticle located close to a dielectric microsphere illuminated by a plane wave or a focused beam is theoretically investigated. It is demonstrated that the main contribution of the microsphere consists in increasing the excitation field. Furthermore, investigation of dipolar emission close to the microsphere shows a redirection of the radiated field in the backward direction.
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A. Devilez, N. Bonod, B. Stout, "Near field dielectric microlenses", Proc. SPIE 7717, Optical Modelling and Design, 771708 (14 May 2010); doi: 10.1117/12.855019; https://doi.org/10.1117/12.855019
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