Nonlocality-induced polarization beam splitting via metal-dielectric composites
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1.School of Physical Science and Technology, Soochow University, Suzhou 215006, China;2.Shenzhen Kuang-Chi Institute of Advanced Technology, Shenzhen 518000, China;3.Shenzhen Kuang-Chi Cutting-edge Technology Co., Ltd, Shenzhen 518000, China;4.State Key Laboratory of Meta-RF Electromagnetic Modulation Technology, Shenzhen 518000, China

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the Shenzhen Science and Technology Plan JSGG20160819150017627 JSGG20160819150000459Supported by the Shenzhen Science and Technology Plan (JSGG20160819150017627, JSGG20160819150000459).

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    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.

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WANG Dun-Jian, LI Su-Cheng, JI Wen-Jie, XIONG Wei, ZHANG Lei, SHANG Yuan-Fang, LUO Jie. Nonlocality-induced polarization beam splitting via metal-dielectric composites[J]. Journal of Infrared and Millimeter Waves,2019,38(4):445~450

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History
  • Received:November 25,2018
  • Revised:May 29,2019
  • Adopted:April 08,2019
  • Online: September 06,2019
  • Published:
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