Electromagnetic energy vortex associated with sub-wavelength plasmonic Taiji marks

Wei Ting Chen, Pin Chieh Wu, Chen Jung Chen, Hung Yi Chung, Yuan Fong Chau, Chieh Hsiung Kuan, Din Ping Tsai

研究成果: Article同行評審

35 引文 斯高帕斯(Scopus)

摘要

The Taiji symbol is a very old schematic representation of two opposing but complementary patterns in oriental civilization. Using electron beam lithography, we fabricated an array of 70 × 70 gold Taiji marks with 30nm thickness and a total area of 50 × 50 μm2 on a fused silica substrate. The diameter of each Taiji mark is 500nm, while the period of the array is 700nm. Here we present experimental as well as numerical simulation results pertaining to plasmonic resonances of several Taiji nano-structures under normal illumination. We have identified a Taiji structure with a particularly interesting vortex-like Poynting vector profile, which could be attributed to the special shape and dimensions of the Taiji symbol.

原文English
頁(從 - 到)19665-19671
頁數7
期刊Optics Express
18
發行號19
DOIs
出版狀態Published - 2010 九月 13

All Science Journal Classification (ASJC) codes

  • 原子與分子物理與光學

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