Optical Curtain Effect: Extraordinary Optical Transmission Enhanced by Antireflection
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11468_2013_Article_9513.pdf
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Author(s)
Cui, Yanxia
Lin, Yinyue
Li, Guohui
Hao, Yuying
He, Sailing
Xu, Jun
Fang, Xuanlai
Date Issued
February 2013
Journal
Plasmonics
Publisher
Springer US
Citation
Cui, Yanxia et al. “Optical Curtain Effect: Extraordinary Optical Transmission Enhanced by Antireflection.” Plasmonics 8.2 (2013): 1087–1093.
Version
Author's final manuscript
Abstract
In this paper, we employ an antireflective coating which comprises inverted π-shaped metallic grooves to manipulate the behaviour of a transverse-magnetic (TM)-polarised plane wave transmitted through a periodic nanoslit array. At normal incidence, such scheme cannot only retain the optical curtain effect in the output region but also generate the extraordinary transmission of light through the nanoslits with the total transmission efficiency as high as 90 %. Besides, we show that the spatially invariant field distribution in the output region as well as the field distribution of resonant modes around the inverted π-shaped grooves can be reproduced immaculately when the system is excited by an array of point sources beneath the inverted π-shaped grooves. Furthermore, we investigate the influence of centre groove and side-corners of the inverted π-shaped grooves on suppressing the reflection of light, respectively. Based on our work, it shows promising potential in applications of enhancing the extraction efficiency as well as controlling the beaming pattern of light emitting diodes.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
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Creative Commons Attribution-Noncommercial-Share Alike
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DOI of Published Version
https://doi.org/10.1007/s11468-013-9513-2
