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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47374

Title: Determination of the effective index and thickness of biomolecular layer by Fano resonances in gold nanogrid array
Authors: Wei PK.
Pan MY
Lee KL, T
sai WS
Wang L
Contributors: 國立臺灣海洋大學:光電科學研究所
Date: 2015-08
Issue Date: 2018-07-17T03:22:15Z
Publisher: Optics Express
Abstract: Abstract: We present an accurate method to determine the effective refractive index and thickness of biomolecular layer by using Fano resonance modes in dual-period gold nanogrid arrays. The effective refractive index changes along the x and y directions are simultaneously measured and obtained by using a modified dispersion relation. The thickness of the surface layer is calculated by a three-layer waveguide equation without any fitting parameters. The accuracy of the proposed method is verified by comparing the results with the known coated dielectric layer and self-assembly layers. The applications of this method and nanogrid chips for determining the thickness and surface concentration of antigen/antibody interactions are demonstrated.
Relation: 23(17)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47374
Appears in Collections:[光電科學研究所] 期刊論文

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