具有简单分层设计的光学聚光器。

Optical Concentrators with Simple Layered Designs.

作者信息

Sadeghi Mohammad Mehdi, Xu Lin, Nadgaran Hamid, Chen Huanyang

机构信息

1] College of Physics, Optoelectronics and Energy &Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215006, China [2] Department of Physics, Shiraz University, Shiraz 71454, Iran.

College of Physics, Optoelectronics and Energy &Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215006, China.

出版信息

Sci Rep. 2015 Jun 15;5:11015. doi: 10.1038/srep11015.

DOI:10.1038/srep11015

PMID:26074497

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4466584/

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.

摘要

基于变换光学和法布里-珀罗共振的结合，最近制造了一种场集中器的微波原型。然而，当工作频率进入红外或光频时，使用理想电导体作为设计元件是不可能的。在本文中，我们表明，具有正负介电常数交替的分层结构可用于设计具有类似功能的集中器。提出了一种仅使用两种半导体的实际设计。进行了理论分析和数值模拟以验证集中效果。