Polarization conversion based on plasmonic phase control by an ultra-thin metallic nano-strips

Helei Wei; Dejiao Hu; Yunsheng Deng; Xuannan Wu; Xiao Xiao; Yidong Hou; Yunjiao Wang; Ruiying Shi; Deqiang Wang; Jinglei Du

doi:10.1063/1.4971374

AIP Advances (Dec 2016)

Polarization conversion based on plasmonic phase control by an ultra-thin metallic nano-strips

Helei Wei,
Dejiao Hu,
Yunsheng Deng,
Xuannan Wu,
Xiao Xiao,
Yidong Hou,
Yunjiao Wang,
Ruiying Shi,
Deqiang Wang,
Jinglei Du

Affiliations

Helei Wei: College of Physical Science and Technology, Sichuan University, 610064 Chengdu, China
Dejiao Hu: College of Physical Science and Technology, Sichuan University, 610064 Chengdu, China
Yunsheng Deng: Chongqing Key Lab of Multi-scale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, 400714 Chongqing, China
Xuannan Wu: College of Physical Science and Technology, Sichuan University, 610064 Chengdu, China
Xiao Xiao: College of Physical Science and Technology, Sichuan University, 610064 Chengdu, China
Yidong Hou: College of Physical Science and Technology, Sichuan University, 610064 Chengdu, China
Yunjiao Wang: Chongqing Key Lab of Multi-scale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, 400714 Chongqing, China
Ruiying Shi: College of Physical Science and Technology, Sichuan University, 610064 Chengdu, China
Deqiang Wang: Chongqing Key Lab of Multi-scale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, 400714 Chongqing, China
Jinglei Du: College of Physical Science and Technology, Sichuan University, 610064 Chengdu, China

DOI: https://doi.org/10.1063/1.4971374
Journal volume & issue: Vol. 6, no. 12
pp. 125304 – 125304-7

Abstract

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Ultra-thin metallic nano-strips (thinner than skin depth) can lead to anomalous reflection for a transverse magnetic (TM) incidence of some wave-lengths, due to the phase modulation of localized surface plasmon resonance. Based on the principle above, we proposed a method of polarization modulation using ultra-thin metallic nano-strips. When irradiating nano-strips vertically by light with a given polarized angle, we can utilize the phase difference of the TM transmission and transverse electric (TE) transmission near anomalous reflection region to modulate transmission polarization. We have designed and fabricated the ultra-thin metallic nano-strips with the function of quarter-wave plate, the attained transmission Stokes parameter S3 is 0.95. The nano-strips is easy to design and fabricate, also compatible with other optics devices, hence has the potential applications in integrated optics field.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

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