A nanoimprinted plasmonic substrate for both local preconcentration and SERS detection

Ding Zheng Lin, Tien Li Chang, Jen You Chu

研究成果: 書貢獻/報告類型會議貢獻

摘要

In this paper, we present a novel plasmonic substrate for both local preconcentration and surface enhanced Raman scattering (SERS) detection. The plasmonic substrate is fabricated by nanoimprint process and then overlaid a thin silver film to adjust the surface plasmon resonance wavelength. Both photothermal conversion and SERS-active wavelength are designed for He-Ne Laser. The measurement process includes three steps. First of all, local concentration is performed by laser induced heating on the plasmonic substrate (over 100°C) to create a small bubble in high power mode (10mW). Then turn off the laser, the target analyte (Rhodamine 6G solution) will concentrate to the center as the bubble disappeared. Finally, the SERS spectra are taken in low power mode (1mW). The intensity of SERS signal at the concentrated region is an order of magnitude larger than the untreated region. The repeatability of this preconcentration process makes it a good candidate to amplify small SERS signals especially for trace detections.

原文英語
主出版物標題Plasmonics
主出版物子標題Metallic Nanostructures and Their Optical Properties VIII
7757
DOIs
出版狀態已發佈 - 2010 十二月 1
對外發佈Yes
事件Plasmonics: Metallic Nanostructures and Their Optical Properties VIII - San Diego, CA, 美国
持續時間: 2010 八月 12010 八月 5

其他

其他Plasmonics: Metallic Nanostructures and Their Optical Properties VIII
國家美国
城市San Diego, CA
期間10/8/110/8/5

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

指紋 深入研究「A nanoimprinted plasmonic substrate for both local preconcentration and SERS detection」主題。共同形成了獨特的指紋。

  • 引用此

    Lin, D. Z., Chang, T. L., & Chu, J. Y. (2010). A nanoimprinted plasmonic substrate for both local preconcentration and SERS detection. 於 Plasmonics: Metallic Nanostructures and Their Optical Properties VIII (卷 7757). [77572D] https://doi.org/10.1117/12.860572