Beaming light from a subwavelength metal slit surrounded by dielectric surface gratings

D. Z. Lin, C. K. Chang, Y. C. Chen, D. L. Yang, M. W. Lin, J. T. Yeh, J. M. Liu, C. H. Kuan, C. S. Yeh, C. K. Lee

研究成果: Article同行評審

89 引文 斯高帕斯(Scopus)

摘要

In this article, we demonstrate that a subwavelength metal slit surrounded by dielectric surface gratings possesses a directional beaming effect. We propose a surface plasmon diffraction scheme to explain the three kinds of beaming conditions. The numerical simulations of the illustrative structures undertaken used a Finite Difference Time Domain (FDTD) Method and a Rigorous Coupled Wave Analysis (RCWA) Method. Our simulations were found to be consistent and in agreement with the experimental results. In comparison with other metal structures, we find that dielectric metal structures offer better performance as well as the advantage of being able to be efficiently mass produced for large volume industrial applications.

原文English
頁(從 - 到)3503-3511
頁數9
期刊Optics Express
14
發行號8
DOIs
出版狀態Published - 2006 四月 17

All Science Journal Classification (ASJC) codes

  • 原子與分子物理與光學

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