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Optical Concentrators with Simple Layered Designs.


ABSTRACT: A microwave prototype of field concentrator was recently fabricated, based on the combination of transformation optics and Fabry-Pérot resonances. Perfect electric conductors used as design elements is however, impossible when the working frequencies go to infrared or optical frequencies. Here in this paper, we show that layered structure with alternating dielectrics of positive and negative permittivities can be used to design concentrators of similar function. A practical design with only two kinds of semiconductors is suggested. Theoretical analysis and numerical simulations are performed to verify the concentrating effect.

SUBMITTER: Sadeghi MM 

PROVIDER: S-EPMC4466584 | biostudies-other | 2015

REPOSITORIES: biostudies-other

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