Photonic Sensors, Volume. 2, Issue 3, 271(2012)
Modeling of Gold Circular Sub-Wavelength Apertures on a Fiber Endface for Refractive Index Sensing
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 ± 16) nm per refractive index unit (RIU) as found through the variation of a reflection minimum with the wavelength.
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Huy NGUYEN, Gregory W. BAXTER, Stephen F. COLLINS, Fotios SIDIROGLOU, Ann ROBERTS, Timothy J. DAVIS. Modeling of Gold Circular Sub-Wavelength Apertures on a Fiber Endface for Refractive Index Sensing[J]. Photonic Sensors, 2012, 2(3): 271
Category: Regular
Received: Jun. 8, 2012
Accepted: Jun. 12, 2012
Published Online: Oct. 24, 2013
The Author Email: BAXTER Gregory W. (gregory.baxter@vu.edu.au)