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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 8, Iss. 6 — Jun. 27, 2013

Surface enhanced Raman scattering substrate with metallic nanogap array fabricated by etching the assembled polystyrene spheres array

Liangping Xia, Zheng Yang, Shaoyun Yin, Wenrui Guo, Shuhong Li, Wanyi Xie, Deping Huang, Qiling Deng, Haofei Shi, Hongliang Cui, and Chunlei Du  »View Author Affiliations


Optics Express, Vol. 21, Issue 9, pp. 11349-11355 (2013)
http://dx.doi.org/10.1364/OE.21.011349


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Abstract

A sensitive surface enhanced Raman scattering (SERS) substrate with metallic nanogap array (MNGA) is fabricated by etching of an assembled polystyrene (PS) spheres array, followed by the coating of a metal film. The substrate is reproducible in fabrication and sensitive due to the nanogap coupling resonance (NGCR) enhancement. The NGCR is analyzed with the finite difference time domain (FDTD) method, and the relationship between the gap parameter and the field enhancement is obtained. Experimental measurements of R6G on demonstrate that the enhancement factor (EF) of the MNGA SERS substrate is increased by more than two fold compared with the control sample.

© 2013 OSA

OCIS Codes
(300.6450) Spectroscopy : Spectroscopy, Raman
(280.1415) Remote sensing and sensors : Biological sensing and sensors
(230.4555) Optical devices : Coupled resonators
(240.6695) Optics at surfaces : Surface-enhanced Raman scattering

ToC Category:
Optics at Surfaces

History
Original Manuscript: February 19, 2013
Revised Manuscript: April 5, 2013
Manuscript Accepted: April 6, 2013
Published: May 1, 2013

Virtual Issues
Vol. 8, Iss. 6 Virtual Journal for Biomedical Optics

Citation
Liangping Xia, Zheng Yang, Shaoyun Yin, Wenrui Guo, Shuhong Li, Wanyi Xie, Deping Huang, Qiling Deng, Haofei Shi, Hongliang Cui, and Chunlei Du, "Surface enhanced Raman scattering substrate with metallic nanogap array fabricated by etching the assembled polystyrene spheres array," Opt. Express 21, 11349-11355 (2013)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=oe-21-9-11349


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