Can Maxwell's fish eye lens really give perfect imaging - Physics > OpticsReportar como inadecuado




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Abstract: Both explicit analysis and FEM numerical simulation are used to analyze thefield distribution of a line current in the so-called Maxwell-s fish eye lensbounded with a perfectly electrical conductor PEC boundary. We show thatsuch a 2D Maxwell-s fish eye lens cannot give perfect imaging due to the factthat high order modes of the object field can hardly reach the image point inMaxwell-s fish eye lens. If only zeroth order mode is excited, a good image ofa sharp object may be achieved in some cases, however, its spot-size is largerthan the spot size of the initial object field. The image resolution isdetermined by the field spot size of the image corresponding to the zerothorder component of the object field. Our explicit analysis consists very wellwith the FEM results for a fish eye lens. Time-domain simulation is also givento verify our conclusion. Multi-point images for a single object point are alsodemonstrated.



Autor: Fei Sun, Sailing He

Fuente: https://arxiv.org/







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