Lee, Kyeong-Seok Lee, Taek Sung Kim, Inho Kim, Won Mok 2024-01-20T12:34:08Z 2024-01-20T12:34:08Z 2021-09-01 2013-03-27 0022-3727 https://pubs.kist.re.kr/handle/201004/128231 In this study, a theoretical parametric study on the bimetallic waveguide coupled surface plasmon (SP) resonance sensors was presented in comparison with other alternative configurations suggested to achieve a high sensing resolution. The increasing ratio of inner Ag to outer Au was found to have more drastic effect on the enhancement in the SPR curve sharpness and the sensing resolution in response to the changes in bulk and thin analytes. It was confirmed that the effect of Ag to Au ratio was incomparably superior to that observed in a simple Au/Ag bimetal approach. Remarkably, our calculation also indicated that the sensing resolution could be comparable to that of long range SP resonance configuration and even better for the detection of thin analytes as the Ag to Au ratio increased to 3.75. In addition, the great flexibility in materials selection for the dielectric waveguide and the periodic generation of waveguide coupled modes were verified and their effects were discussed. English IOP PUBLISHING LTD THIN-FILM ENHANCEMENT BIOSENSORS CHIPS Parametric study on the bimetallic waveguide coupled surface plasmon resonance sensors in comparison with other configurations Article 10.1088/0022-3727/46/12/125302 1 JOURNAL OF PHYSICS D-APPLIED PHYSICS, v.46, no.12 JOURNAL OF PHYSICS D-APPLIED PHYSICS 46 12 scie scopus 000315413600020 2-s2.0-84874545122 Physics, Applied Physics Article THIN-FILM ENHANCEMENT BIOSENSORS CHIPS Waveguide Coupled Surface Plasmon Resonance Sensor Bimetallic Surface Plasmon Resonance Sensor Sensing Resolution Enhancement Optical BioSensor