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

doi:10.1364/OE.18.019665

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

Department of Photonics

Research output: Contribution to journal › Article › peer-review

50 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	19665-19671
Number of pages	7
Journal	Optics Express
Volume	18
Issue number	19
DOIs	https://doi.org/10.1364/OE.18.019665
Publication status	Published - 2010 Sept 13

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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title = "Electromagnetic energy vortex associated with sub-wavelength plasmonic Taiji marks",

abstract = "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.",

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AU - Chen, Wei Ting

AU - Wu, Pin Chieh

AU - Chen, Chen Jung

AU - Chung, Hung Yi

AU - Chau, Yuan Fong

AU - Kuan, Chieh Hsiung

AU - Tsai, Din Ping

PY - 2010/9/13

Y1 - 2010/9/13

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AB - 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.

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Electromagnetic energy vortex associated with sub-wavelength plasmonic Taiji marks

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