Organic molecular sensor with plasmon antenna

M. Yanagisawa, N. Shimamoto, T. Nakanishi, M. Saito, T. Osaka

研究成果: Conference contribution

7 被引用数 (Scopus)

抄録

An organic molecular sensor with a plasmon antenna was developed. A coaxial Ag grating antenna was designed by a finite differential time domain (FDTD) calculation and fabricated by a lift-off process. When pumping light was irradiated onto the sensor, a surface plasmon wave was generated and focused at the center of the antenna; this wave produced a strong electric field. By coating a cystamine self-assembled monolayer (SAM) onto the sensor, strong Raman scattering light produced by a surface-enhanced Raman scattering (SERS) effect was observed at the center of the device. The Raman spectrum showed good agreement with that of cystamine on a Ag surface. The Raman intensity at the center of the device increased significantly and was more than 2,000 times that outside the device. Our optical sensor can detect an unknown single molecule and can be incorporated into other sensors such as gas sensors and biosensors.

本文言語English
ホスト出版物のタイトルECS Transactions - Chemical Sensors 8
ホスト出版物のサブタイトルChemical (Gas, Ion, Bio) Sensors and Analytical Systems
ページ397-409
ページ数13
11
DOI
出版ステータスPublished - 2008 12 1
イベントChemical Sensors 8: Chemical (Gas, Ion, Bio) Sensors and Analytical Systems - 214th ECS Meeting - Honolulu, HI, United States
継続期間: 2008 10 122008 10 17

出版物シリーズ

名前ECS Transactions
番号11
16
ISSN(印刷版)1938-5862
ISSN(電子版)1938-6737

Conference

ConferenceChemical Sensors 8: Chemical (Gas, Ion, Bio) Sensors and Analytical Systems - 214th ECS Meeting
CountryUnited States
CityHonolulu, HI
Period08/10/1208/10/17

ASJC Scopus subject areas

  • Engineering(all)

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