Ahn, Jae Heon Seong, Tae Yeon Kim, Won Mok Lee, Taek Sung Kim, Inho Lee, Kyeong-Seok 2024-01-20T14:03:18Z 2024-01-20T14:03:18Z 2021-09-05 2012-09 1094-4087 https://pubs.kist.re.kr/handle/201004/128930 A novel approach to give an excellent tunability and self-referencing capability was presented by applying a concept of waveguide coupled surface plasmon resonance mode to a fiber-optic sensor. The presence of dielectric waveguide sandwiched between two metal layers made it possible to precisely tune the resonance wavelength in a broad range from visible to infrared region and to generate multiple modes which may be selectively used for suitable applications. Our approach also verified the potential capability of self-referencing based on a remarkable difference in sensitivity between the plasmonic and waveguide modes excited by p- and s-polarized lights, respectively, without using an additional reference channel. Experimental measurement carried out on sucrose solutions with varying concentration demonstrated the feasibility of our approach. (C) 2012 Optical Society of America English OPTICAL SOC AMER Fiber-optic waveguide coupled surface plasmon resonance sensor Article 10.1364/OE.20.021729 1 OPTICS EXPRESS, v.20, no.19, pp.21729 - 21738 OPTICS EXPRESS 20 19 21729 21738 N scie scopus 000308865600112 2-s2.0-84866239777 Optics Optics Article SENSITIVITY RANGE LIGHT ENHANCEMENT MULTIMODE BIOSENSOR MODE fiber optic surface plasmon resonance sensor fiber optic sensor waveguide coupled surface plasmon resonance self-referencing tunability