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16 March 2015 Ultra-high sensitivity optical biosensor based on Vernier effect in triangular ring resonators (TRRs) with SPR
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Abstract
In this paper, surface plasmon resonance triangular ring resonator (SPR-TRR) Vernier structure based on InP is simulated for index variation from 1.33 to 1.35. Sensing area of SPR-TRR is achieved to make an ultra-compact SPR mirror by deposition of Au film layer which is designed to deposit on vertex of TRR. The possibility of mass production is shown by a deposition of SPR mirror on the triangular ring resonator (TRR). Also, the sensitivity enhancement of an envelope signal for Vernier effect is confirmed by FDTD simulation compared to SPR-TRR. As simulation results, the sensitivity is enhanced 20 nm / RIU to 480 nm / RIU. Thus, SPR-TRR Vernier structure is used for a biosensor to enhance the sensitivity of biosensor.
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Tae-Ryong Kim, Hong-Seung Kim, Jun Li, Geum-Yoon Oh, Doo-Gun Kim, and Young-Wan Choi "Ultra-high sensitivity optical biosensor based on Vernier effect in triangular ring resonators (TRRs) with SPR", Proc. SPIE 9357, Physics and Simulation of Optoelectronic Devices XXIII, 93571A (16 March 2015); https://doi.org/10.1117/12.2078923
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