Can Maxwell's fish eye lens really give perfect imaging?

Details Can Maxwell's fish eye lens really give perfect imaging? Can Maxwell's fish eye lens really give perfect imaging?

2010-09-24

arxiv.org/abs/1009.4751v2

Physics

Optics

This article has been published on Progress In Electromagnetics Research(PIER): F. Sun and S. He, "Can maxwell's fish eye lens

Scientific paper

Both explicit analysis and FEM numerical simulation are used to analyze the field distribution of a line current in the so-called Maxwell's fish eye lens [bounded with a perfectly electrical conductor (PEC) boundary]. We show that such a 2D Maxwell's fish eye lens cannot give perfect imaging due to the fact that high order modes of the object field can hardly reach the image point in Maxwell's fish eye lens. If only zeroth order mode is excited, a good image of a sharp object may be achieved in some cases, however, its spot-size is larger than the spot size of the initial object field. The image resolution is determined by the field spot size of the image corresponding to the zeroth order component of the object field. Our explicit analysis consists very well with the FEM results for a fish eye lens. Time-domain simulation is also given to verify our conclusion. Multi-point images for a single object point are also demonstrated.

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