The mechanism of optical chirality enhancement in vertical-cut slant-gap antenna

Yu Yu Chen, Chia Yi Lin, Shih Hui Gilbert Chang

研究成果: Article同行評審

摘要

The mechanism of optical chirality enhancements (OCE) in slant-gap antenna with vertical-cut configuration by normal and oblique incident light with linear polarization is demonstrated. The main contribution of OCE is originated from the inner product of the incident H field and the localized surface plasmon resonant (LSPR) evanescent E field. The pure LSPR near-field term E·H gives a net zero contribution. Based on these findings, we can accurately count for the asymmetric OCE distribution due to the substrate effect. The detailed analysis of OCE contribution might provide a route for designing a more efficient chiral molecule sensor.

原文English
文章編號070907
期刊Japanese journal of applied physics
60
發行號7
DOIs
出版狀態Published - 2021 7月

All Science Journal Classification (ASJC) codes

  • 一般工程
  • 一般物理與天文學

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