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Title: Tenfold improved sensitivity using high refractive-index substrates for surface plasmon sensing

Abstract

Surface plasmon resonance sensors exploit the high sensitivity to local perturbations of plasma waves in a thin metal layer. These devices have a wide range of applications as biomedical, environmental, industrial, and homeland security. We concentrate on the theoretical aspects of the sensing principle. By calculations at various indexes of refraction we proved that using substrate material of higher index, sensitivity and dynamics range improve conspicuously. Finally, we show experimental data taken using a special transparent ceramic material of exceptionally high index of refraction n=2.04. Tests demonstrate sensitivity about one order of magnitude better than those obtained with conventional BK7 glass.

Authors:
 [1];  [2];  [3];  [2]
  1. Nanoscience and Technology, International Graduate School of Art and Sciences, Yokohama City University, Seto, Kanazawa-ku, Yokohama 236-0027 (Japan)
  2. Department of Electronic Science, Graduate School of Engineering, Kyoto University, Nishigyo-ku, Katsura, 615-8510 Kyoto (Japan)
  3. Murata Manufactoring Co., Ltd., Higashikotari 1-chome, Nagaokakyo-shi, 617-8555 Kyoto (Japan)
Publication Date:
OSTI Identifier:
21175697
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 93; Journal Issue: 17; Other Information: DOI: 10.1063/1.3005584; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CERAMICS; DISTURBANCES; LAYERS; METALS; PLASMA WAVES; REFRACTIVE INDEX; SECURITY; SENSITIVITY; SENSORS; SUBSTRATES

Citation Formats

Micheletto, Ruggero, Department of Electronic Science, Graduate School of Engineering, Kyoto University, Nishigyo-ku, Katsura, 615-8510 Kyoto, Hamamoto, Katsumi, Teramecs Ltd., 97 Higashi Koyanouchi-cho, Takeda, Fushimi-ku, 612-8448 Kyoto, Fujii, Takashi, and Kawakami, Yoichi. Tenfold improved sensitivity using high refractive-index substrates for surface plasmon sensing. United States: N. p., 2008. Web. doi:10.1063/1.3005584.
Micheletto, Ruggero, Department of Electronic Science, Graduate School of Engineering, Kyoto University, Nishigyo-ku, Katsura, 615-8510 Kyoto, Hamamoto, Katsumi, Teramecs Ltd., 97 Higashi Koyanouchi-cho, Takeda, Fushimi-ku, 612-8448 Kyoto, Fujii, Takashi, & Kawakami, Yoichi. Tenfold improved sensitivity using high refractive-index substrates for surface plasmon sensing. United States. doi:10.1063/1.3005584.
Micheletto, Ruggero, Department of Electronic Science, Graduate School of Engineering, Kyoto University, Nishigyo-ku, Katsura, 615-8510 Kyoto, Hamamoto, Katsumi, Teramecs Ltd., 97 Higashi Koyanouchi-cho, Takeda, Fushimi-ku, 612-8448 Kyoto, Fujii, Takashi, and Kawakami, Yoichi. Mon . "Tenfold improved sensitivity using high refractive-index substrates for surface plasmon sensing". United States. doi:10.1063/1.3005584.
@article{osti_21175697,
title = {Tenfold improved sensitivity using high refractive-index substrates for surface plasmon sensing},
author = {Micheletto, Ruggero and Department of Electronic Science, Graduate School of Engineering, Kyoto University, Nishigyo-ku, Katsura, 615-8510 Kyoto and Hamamoto, Katsumi and Teramecs Ltd., 97 Higashi Koyanouchi-cho, Takeda, Fushimi-ku, 612-8448 Kyoto and Fujii, Takashi and Kawakami, Yoichi},
abstractNote = {Surface plasmon resonance sensors exploit the high sensitivity to local perturbations of plasma waves in a thin metal layer. These devices have a wide range of applications as biomedical, environmental, industrial, and homeland security. We concentrate on the theoretical aspects of the sensing principle. By calculations at various indexes of refraction we proved that using substrate material of higher index, sensitivity and dynamics range improve conspicuously. Finally, we show experimental data taken using a special transparent ceramic material of exceptionally high index of refraction n=2.04. Tests demonstrate sensitivity about one order of magnitude better than those obtained with conventional BK7 glass.},
doi = {10.1063/1.3005584},
journal = {Applied Physics Letters},
issn = {0003-6951},
number = 17,
volume = 93,
place = {United States},
year = {2008},
month = {10}
}