Sensing characteristics of plasmonic structure based on transferring process of polystyrene nano-beads

  • 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

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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.

Original languageEnglish
Title of host publicationNanophotonics VI
EditorsJean-Michel Nunzi, David L. Andrews, Andreas Ostendorf
PublisherSPIE
ISBN (Electronic)9781510601291
DOIs
StatePublished - 2016
EventNanophotonics VI - Brussels, Belgium
Duration: 3 Apr 20167 Apr 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9884
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceNanophotonics VI
Country/TerritoryBelgium
CityBrussels
Period3/04/167/04/16

Keywords

  • Metallic nano-structures
  • Polystyrene
  • Sensor
  • Surface plasmon resonance

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