Periodic array of nanoholes on gold-coated optical fiber end-faces for surface plasmon resonance liquid refractive index sensing

Huy Nguyen; Fotios Sidiroglou; Stephen F. Collins; Gregory W. Baxter; Ann Roberts; Timothy J. Davis

doi:10.1117/12.915938

30 January 2012 Periodic array of nanoholes on gold-coated optical fiber end-faces for surface plasmon resonance liquid refractive index sensing

Huy Nguyen, Fotios Sidiroglou, Stephen F. Collins, Gregory W. Baxter, Ann Roberts, Timothy J. Davis

Author Affiliations +

Proceedings Volume 8351, Third Asia Pacific Optical Sensors Conference; 835128 (2012) https://doi.org/10.1117/12.915938
Event: Asia Pacific Optical Sensors Conference, 2012, Sydney, Australia

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.

Citation Download Citation

Huy Nguyen, Fotios Sidiroglou, Stephen F. Collins, Gregory W. Baxter, Ann Roberts, and Timothy J. Davis "Periodic array of nanoholes on gold-coated optical fiber end-faces for surface plasmon resonance liquid refractive index sensing", Proc. SPIE 8351, Third Asia Pacific Optical Sensors Conference, 835128 (30 January 2012); https://doi.org/10.1117/12.915938

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