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Proceedings Paper

Modeling of sensitive biosensor using gap plasmons in gold nanoslits
Author(s): Jui-Teng Lin; Ding-Wei Huang
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Paper Abstract

We present analytic formulas and numerical results for the resonance wavelength for cavity modes in a metallic nanoslit defined by its period (P), width (d), height (h) and the medium refractive indices (n) under the phase-matching conditions. The effective refractive inside the nanoslit cavity is numerically calculated and fit to an equation governed by the slit width and independent to the resonance peak wavelengths (λ). Three sensitivities defined by the change rate of the cavity-mode peak wavelength due to slit height, width and medium refractive index, respectively, are analyzed.

Paper Details

Date Published:
Proc. SPIE 7908, Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications VIII, 79080K; doi: 10.1117/12.874055
Show Author Affiliations
Jui-Teng Lin, National Taiwan Univ. (Taiwan)
Ding-Wei Huang, National Taiwan Univ. (Taiwan)

Published in SPIE Proceedings Vol. 7908:
Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications VIII
Alexander N. Cartwright; Dan V. Nicolau, Editor(s)

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