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Optical Curtain Effect: Extraordinary Optical Transmission Enhanced by Antireflection

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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.

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Acknowledgments

This work is partially supported by the National Natural Science Foundation of China (11204205, 60976018, 61274056 and 60990320), the National Science Foundation (CMMI 0846771), Natural Foundation of Shanxi (2012011020-4), Special Foundation of Taiyuan University of Technology (2012L033), and the Starting Research Fund from Taiyuan University of Technology.

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Authors and Affiliations

  1. Key Laboratory of Advanced Transducers and Intelligent Control System (Ministry of Education), College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan, 030024, China

    Yanxia Cui, Yinyue Lin, Guohui Li & Yuying Hao

  2. Centre for Optical and Electromagnetic Research, State Key Laboratory of Modern Optical Instrumentation; JORCEP (KTH-ZJU Joint Center of Photonics), Zhejiang University, Hangzhou, 310058, China

    Yanxia Cui & Sailing He

  3. Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA

    Jun Xu & Nicholas X. Fang

Authors
  1. Yanxia Cui
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  2. Jun Xu
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  3. Yinyue Lin
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  4. Guohui Li
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  5. Yuying Hao
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  6. Sailing He
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  7. Nicholas X. Fang
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Correspondence to Yanxia Cui or Yuying Hao.

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Cui, Y., Xu, J., Lin, Y. et al. Optical Curtain Effect: Extraordinary Optical Transmission Enhanced by Antireflection. Plasmonics 8, 1087–1093 (2013). https://doi.org/10.1007/s11468-013-9513-2

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  • DOI: https://doi.org/10.1007/s11468-013-9513-2

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