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Design of high sensitive surface plasmon resonance sensor with metallic nano-structure
- Authors
- Lee, Byeong-Hyeon; Oh, Geum-Yoon; Kim, Hong-Seung; Lee, Tae-Kyeong; Kim, Doo-Gun; Choi, Young-Wan
- Issue Date
- Mar-2013
- Publisher
- SPIE-INT SOC OPTICAL ENGINEERING
- Keywords
- Finite-difference time-domain (FDTD); Surface plasmon resonance (SPR); Sensor; Nano-stucture; Localized surface plasmon resonance (LSPR)
- Citation
- PHYSICS AND SIMULATION OF OPTOELECTRONIC DEVICES XXI, v.8619
- Journal Title
- PHYSICS AND SIMULATION OF OPTOELECTRONIC DEVICES XXI
- Volume
- 8619
- ISSN
- 0277-786X
1996-756X
- Abstract
- In this paper, we have designed and optimized the metallic nano-structures on a conventional surface plasmon resonance (SPR) sensor which induce the localized surface plasmon resonance for an improved sensitivity. Designed SPR sensor was simulated with 3D Finite-difference time-domain method. The sensitivity is maximized to 130.9 degree/RIU when the thickness of film layer T-F is 30 nm while that of a conventional SPR sensor is less than 99.6 degree/RIU, and the reflectivity is minimized when T-F is 25 nm. The most appropriated diameter of particles is about 35 nm for high sensitivity.
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