Document Type

Journal Article

Publisher

Optical Society of America

Faculty

Faculty of Computing, Health and Science

School

Electron Science Research Institute

RAS ID

14628

Comments

This article was originally published as: Xiao, F. , Li, G., Alameh, K. , & Xu, A. (2012). Fabry-Perot-based surface plasmon resonance sensors. Optics Letters, 37(22), 4582-4584. Original article available here

Abstract

A new sensing approach based on the use of an optical Fabry-Pérot (FP) cavity in conjunction with surface plasmon resonance (SPR) is proposed and theoretically investigated. The impact of the SPR on the intensity and phase response of the proposed sensor structure is evaluated using a modified FP model that takes into account the SPR effect. Compared to the conventional optical-phase-detection-based Kretschmann configuration, the proposed sensing approach requires only the measurement of the output power spectrum over a narrow wavelength span of several nanometers to evaluate the phase responses of the sensor, making it more attractive for practical high-sensitivity sensing applications.

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