Nonlocality-induced polarization beam splitting via metal-dielectric composites
Received:November 25, 2018  Revised:May 29, 2019  download
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Author NameAffiliationE-mail
WANG Dun-Jian School of Physical Science and Technology, Soochow University, Suzhou 215006, China djvanoliver@163.com 
LI Su-Cheng Shenzhen Kuang-Chi Institute of Advanced Technology, Shenzhen 518000, China
Shenzhen Kuang-Chi Cutting-edge Technology Co., Ltd, Shenzhen 518000, China 
 
JI Wen-Jie School of Physical Science and Technology, Soochow University, Suzhou 215006, China  
XIONG Wei Shenzhen Kuang-Chi Institute of Advanced Technology, Shenzhen 518000, China  
ZHANG Lei Shenzhen Kuang-Chi Institute of Advanced Technology, Shenzhen 518000, China  
SHANG Yuan-Fang Shenzhen Kuang-Chi Institute of Advanced Technology, Shenzhen 518000, China  
LUO Jie School of Physical Science and Technology, Soochow University, Suzhou 215006, China
State Key Laboratory of Meta-RF Electromagnetic Modulation Technology, Shenzhen 518000, China 
 
Abstract:three kinds of polarization beam splitters can be designed by using a simple metal-dielectric multilayered structure with strong nonlocality,. It is found that the equal frequency contour for the transverse electric polarization is a small circle when the average permittivity is close to zero. At the same time, the equal frequency contour for the transverse magnetic polarization turns be two branches of parabolas due to surface plasmon-induced nonlocal effect. Based on the dramatic difference between dispersions of the two polarizations, three kinds of polarization beam splitters are demonstrated, including the ultrathin ones, which may have important applications in polarization-sensitive absorbers and compact optical devices.
keywords:nonlocality  polarization beam splitters  zero-index media  metal-dielectric composites
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Copyright:《Journal of Infrared And Millimeter Waves》