Conference Proceedings
Periodic array of nanoholes on gold-coated optical fiber end-faces for surface plasmon resonance liquid refractive index sensing
H Nguyen, F Sidiroglou, SF Collins, GW Baxter, A Roberts, TJ Davis
Proceedings of SPIE the International Society for Optical Engineering | Published : 2012
DOI: 10.1117/12.915938
Abstract
Focused ion beam (FIB) lithography was used to inscribe a periodic array of nanoholes directly on gold-coated optical fiber end-faces. The excitation of the surface plasmon polaritons of the nanohole arrays on the optical fiber end-faces provided the basis of a refractive index sensor for liquids. This optical fiber based surface plasmon resonance sensor is compact and has the potential to be used in biomedical applications. A sensitivity of approximately 294 nm per refractive index unit (RIU) has been demonstrated for this sensor. © 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).
Grants
Awarded by Australian Research Council
Funding Acknowledgements
The authors would like to acknowledge the financial support of the Australian Research Council (project number DP0878268).