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Proceedings Paper

Sensing characteristics of plasmonic structure based on transferring process of polystyrene nano-beads
Author(s): Doo Gun Kim; Jeongwoo Hwang; Seon Hoon Kim; Hyun Chul Ki; Tae Un Kim; Jae Cheol Shin; Dae-Cheol Jeong; Seungwon Jeon; Hong-Seung Kim; Young-Wan Choi
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Paper Abstract

We analyzed and demonstrated the double layered metallic nano-structures using polystyrene lift-off process on the conventional surface plasmon resonance (SPR) sensor to enhance the sensitivity of an SPR surface. The double layered plasmonic structures are optimized using the three-dimensional finite-difference time-domain method for the width, thickness, and period of the polystyrene beads. The thickness of the metal film and the metallic nano-hole is 20 and 20 nm in the 305 nm wide nano-hole size, respectively. The double layered metallic nano-structures are fabricated with monolayer polystyrene beads of chloromethyl latex 4% w/v 0.4 μm. The sensitivities of the conventional SPR sensor and the double layered plasmonic sensor are obtained to 42.2 and 60 degree/RIU, respectively. The SPR devices are also applied to the lead ion sensor. The resonance shifts of SPR sensors with and without a poly(vinyl chloride) membrane are 1328 RU and 788 RU from 10-5 M to 10-2 M concentration, respectively.

Paper Details

Date Published: 21 April 2016
PDF: 7 pages
Proc. SPIE 9884, Nanophotonics VI, 98842S (21 April 2016); doi: 10.1117/12.2227468
Show Author Affiliations
Doo Gun Kim, Korea Photonics Technology Institute (Korea, Republic of)
Jeongwoo Hwang, Korea Photonics Technology Institute (Korea, Republic of)
Seon Hoon Kim, Korea Photonics Technology Institute (Korea, Republic of)
Hyun Chul Ki, Korea Photonics Technology Institute (Korea, Republic of)
Tae Un Kim, Korea Photonics Technology Institute (Korea, Republic of)
Jae Cheol Shin, Yeungnam Univ. (Korea, Republic of)
Dae-Cheol Jeong, Chonnam National Univ. (Korea, Republic of)
Seungwon Jeon, Chonnam National Univ. (Korea, Republic of)
Hong-Seung Kim, Chung-Ang Univ. (Korea, Republic of)
Young-Wan Choi, Chung-Ang Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 9884:
Nanophotonics VI
David L. Andrews; Jean-Michel Nunzi; Andreas Ostendorf, Editor(s)

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