Nanotech 2011 Vol. 3
Nanotech 2011 Vol. 3
Nanotechnology 2011: Bio Sensors, Instruments, Medical, Environment and Energy

Bio Sensors, Diagnostics, Imaging & Instrumentation Chapter 1

Surface Plasmon Grating Coupled Emission from Organic Emitter for Detecting Refractive Index Variation

Authors: N.-F. Chiu, J.-H. Lee, C.-W. Lin

Affilation: National Taiwan Normal University, Taiwan

Pages: 90 - 93

Keywords: surface plasmon grating coupled emission (SPGCE), band-gap, refractive-index

Abstract:
We demonstrated the surface plasmon grating coupled emission (SPGCE) from photo-excited organic layer covered with metal thin film on the corrugated substrate. Directional emissions corresponded to the resonant condition of surface plasmon modes on the Au/air interface. In our experiments, we used different pitch sizes to control plasmonic band-gap which produced highly directional SPGCE with enhanced intensity. Based on our calculation, SPGCE showed a color change from yellowish green to orange at a certain viewing angle, while the concentration of contacting glucose was increased from 10 to 40%, corresponding to the refractive index change from 1.3484 to 1.3968. This indicated a potential application of low-cost, integrated, and disposable refractive-index sensor.

Surface Plasmon Grating Coupled Emission from Organic Emitter for Detecting Refractive Index Variation

ISBN: 978-1-4398-7138-6
Pages: 852
Hardcopy: $199.95