Prediction of transmission shape-resonances in aperture arrays with one- or twofold mirror-symmetry based on a near-field phase property

Hui Hsin Hsiao, Hung Chun Chang

研究成果: 雜誌貢獻期刊論文同行評審

3 引文 斯高帕斯(Scopus)

摘要

The light-transmission resonant behavior of complex-shaped patterns can be difficult to estimate intuitively due to many possible resonant contours. In this paper, we propose a simple method to predict the effective resonant paths of onefold or twofold mirror-symmetry patterns, which exploits the antiphase property of certain field component along the resonant path and the symmetry requirement associated with the incident-wave polarization state. In addition, the resonant wavelengths for aperture-type patterns can further be estimated by a simple modified cutoff wavelength equation for a rectangular waveguide. Such prediction is validated by the simulated results of the finite-difference time domain method. In addition, we discuss how the separation distance between slit elements in the aperture affects the resonant wavelength, showing how the coupling between adjacent slits would play a role in the variation of the spectra. By studying the properties of such factors and how they interact in detail, we could manipulate the spectra with an additional degree of freedom, which could be important to structures with multielements in one unit cell.

原文英語
文章編號6736077
頁(從 - 到)287-294
頁數8
期刊IEEE Journal of Quantum Electronics
50
發行號4
DOIs
出版狀態已發佈 - 2014 四月
對外發佈

ASJC Scopus subject areas

  • 原子與分子物理與光學
  • 凝聚態物理學
  • 電氣與電子工程

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