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  • Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science and Photonic Applications Systems Technologies
  • Technical Digest (CD) (Optica Publishing Group, 2005),
  • paper JTuC102

Self-assembled, Ordered Gold Nanocrystal/Silica Thin Films for Prism-based Surface Plasmon Resonance Sensors

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Abstract

Gold nanocrystal(NC)/silica films are synthesized through self-assembly of water-soluble gold nanocrystal micelles and silica by sol-gel processing. Absorption and transmission spectra show a strong surface plasmon resonance absorption peak at~520 nm. Angular excitation spectra of surface plasmon show a steep dip in the reflectivity curve at ~65° depending on the thickness and refractive index of the gold NC/silica film. A potential SPR sensor with enhanced sensitivities can be realized based on these gold NC/silica films.

© 2005 Optical Society of America

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