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

• Micheletto, Ruggero

• Hamamoto, Katsumi

• Fujii, Takashi

• Kawakami, Yoichi

抄録

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.

収録刊行物

• APPLIED PHYSICS LETTERS

  APPLIED PHYSICS LETTERS 93 (17), 2008-10-27

  American Institute of Physics

詳細情報

• CRID: 1050001201692428032
• NII論文ID: 120001462528
• NII書誌ID: AA00543431
• ISSN: 00036951
• HANDLE: 2433/84580
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
  • IRDB
  • CiNii Articles