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Proceedings Paper

Optical characteristics of surface plasmon resonance based on Au photonic crystal structures
Author(s): Seon Hoon Kim; Doo Gun Kim; Geum-Yoon Oh; Hyun Chul Ki; Tae Un Kim; Jung Woon Lim; Hwe Jong Kim; Byung-Teak Lee
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Paper Abstract

We proposed the photonic crystal coupled surface plasmon resonance sensors using gold nano-structure to enhance the sensitivity of an SPR sensor. The proposed configuration with the photonic crystal structure is Au(Photonic crystal)/Au/Ag/Cr/Glass. The 20 nm silver film and the 20 nm gold film are layered on the glass substrate. Then, the dot-like gold photonic crystal structures with a period pitch are patterned on the Au/Ag/Cr/Glass structure. The reflectance and the optical-mode propagations as a function of incident angle are calculated using the three-dimensional finite-difference time-domain method. Under this resonance condition, the incident light is highly absorbed and loses a fair amount of its energy, which results in a dip in the intensity profile of the reflected light. The optimum resonance angle of 44.5 degrees is obtained in the 75-nm-radius Au photonics crystal structure with a period of 300 nm.

Paper Details

Date Published: 3 May 2011
PDF: 7 pages
Proc. SPIE 8068, Bioelectronics, Biomedical, and Bioinspired Systems V; and Nanotechnology V, 80681B (3 May 2011); doi: 10.1117/12.886784
Show Author Affiliations
Seon Hoon Kim, Korea Photonics Technology Institute (Korea, Republic of)
Doo Gun Kim, Korea Photonics Technology Institute (Korea, Republic of)
Geum-Yoon Oh, Chung-Ang Univ. (Korea, Republic of)
Hyun Chul Ki, Korea Photonics Technology Institute (Korea, Republic of)
Tae Un Kim, Korea Photonics Technology Institute (Korea, Republic of)
Jung Woon Lim, Korea Photonics Technology Institute (Korea, Republic of)
Hwe Jong Kim, Korea Photonics Technology Institute (Korea, Republic of)
Byung-Teak Lee, Chonnam National Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 8068:
Bioelectronics, Biomedical, and Bioinspired Systems V; and Nanotechnology V
Ángel B. Rodríguez-Vázquez; Rainer Adelung, Editor(s)

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