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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47431

Title: Comparisons of Surface Plasmon Sensitivities in Periodic Gold Nanostructures
Authors: Pei-Kuen Wei
Kuang-Li Lee
Way-Seen Wang
Contributors: 國立臺灣海洋大學:光電科學研究所
Keywords: Wavelength sensitivity
Nanostructures
Surface plasmon resonance
Date: 2008-09
Issue Date: 2018-07-23T01:30:19Z
Abstract: Abstract: The wavelength sensitivities of three kinds of nanostructures (nanoslits, nanoholes, and concentric circles) with various aperture sizes were compared in water environment. These nanostructures were made on a 110-nm-thick gold film with a period of 600 nm. Surface plasmon resonances in these nanostructures produce transmission dips near the phase-matching conditions while peaks at longer wavelengths. The wavelength sensitivities measured at dips are close to theoretical predictions and about 1.5 times larger than those measured at peaks. Such sensitivity difference is attributed to various surface plasmon distributions, as illustrated by the finite-difference time-domain calculations. In addition, the sensitivity decreases with the increase of aperture size. The nanoslit array and concentric circles have better sensitivities than the nanohole array due to the no cut-off transmission.
Relation: 3(4) pp.119–125
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47431
Appears in Collections:[光電科學研究所] 期刊論文

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