一维介电光子晶体的超透镜特性
Superlensing properties of one-dimensional dielectric photonic crystals.
作者信息
Savo Salvatore, Di Gennaro Emiliano, Andreone Antonello
机构信息
CNR - INFM Coherentia and Physics Department, University Federico II, Napoli, Italy.
出版信息
Opt Express. 2009 Oct 26;17(22):19848-56. doi: 10.1364/OE.17.019848.
PMID:19997206
Abstract
We present the experimental observation of the superlensing effect in a slab of a one-dimensional photonic crystal made of tilted dielectric elements. We show that this flat lens can achieve subwavelength resolution in different frequency bands. We also demonstrate that the introduction of a proper corrugation on the lens surface can dramatically improve both the transmission and the resolution of the imaged signal.
摘要
我们展示了在由倾斜介电元件制成的一维光子晶体平板中对超透镜效应的实验观察。我们表明，这种平面透镜可以在不同频段实现亚波长分辨率。我们还证明，在透镜表面引入适当的波纹可以显著提高成像信号的透射率和分辨率。
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