%0 Journal Article
%T Modeling of gold circular sub-wavelength apertures on a fiber endface for refractive index sensing
%A Huy Nguyen
%A Gregory W. Baxter
%A Stephen F. Collins
%A Fotios Sidiroglou
%A Ann Roberts
%A Timothy J. Davis
%J Photonic Sensors
%@ 2190-7439
%D 2012
%I 
%R 10.1007/s13320-012-0068-1
%X A finite-difference time-domain approach was used to investigate the excitation of surface plasmons of the circular sub-wavelength apertures on an optical fiber endface. This phenomenon provided the basis of a sensitive liquid refractive index sensor. The proposed sensor is compact and has the potential to be used in biomedical applications, having a sensitivity of (373 ¡À 16) nm per refractive index unit (RIU) as found through the variation of a reflection minimum with the wavelength.
%K Optical fiber
%K surface plasmon resonance
%K periodic array
%K refractive index sensing
%K finite-difference time-domain
%U http://link.springer.com/article/10.1007/s13320-012-0068-1