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Proceedings Paper

Shape-dependent effect of surface-enhanced Raman scattering on gold nanostructured arrays
Author(s): Hsing-Ying Lin; Chen-Han Huang; Chih-Han Chang; Hsiang-Chen Chui
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Paper Abstract

Surface-enhanced Raman scattering (SERS) on gold nanohole and nanodisk arrays with precisely controlled size, spacing and shapes of rod, circle, and triangle fabricated via focused ion beam was investigated by 632- and 785-nm lasers. Results demonstrate that nanodisks and nanoholes exhibit strong SERS signals at 632-nm excitation, but only triangular nanoholes present SERS signals at 785-nm excitation. The normal incidence transmission spectrum of nanoholes shows the extension of near-infrared wavelength, but not for nanodisks. The broadband wavelength of plasmon resonance and space confined by triangular nanoholes suggest promise for being a functional component in biosensing, Raman spectroscopy, and photonic devices.

Paper Details

Date Published: 16 February 2010
PDF: 8 pages
Proc. SPIE 7577, Plasmonics in Biology and Medicine VII, 757704 (16 February 2010); doi: 10.1117/12.841598
Show Author Affiliations
Hsing-Ying Lin, Institute of Biomedical Engineering, National Cheng Kung Univ. (Taiwan)
Chen-Han Huang, Institute of Electro-Optical Science and Engineering, National Cheng Kung Univ. (Taiwan)
Chih-Han Chang, Institute of Electro-Optical Science and Engineering, National Cheng Kung Univ. (Taiwan)
Hsiang-Chen Chui, Institute of Biomedical Engineering, National Cheng Kung Univ. (Taiwan)


Published in SPIE Proceedings Vol. 7577:
Plasmonics in Biology and Medicine VII
Tuan Vo-Dinh; Joseph R. Lakowicz, Editor(s)

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