Share Email Print
cover

Journal of Nanophotonics

Nanoreplicated positive and inverted submicrometer polymer pyramid array for surface-enhanced Raman spectroscopy
Format Member Price Non-Member Price
PDF $20.00 $25.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We demonstrated gold-coated polymer surface enhanced Raman scattering (SERS) substrates with a pair of complementary structures-positive and inverted pyramid array structures fabricated by a multiple-step molding and replication process. The uniform SERS enhancement factors over the entire device surface were measured as 7.2×104 for positive pyramid substrates while 1.6×106 for inverted pyramid substrates with Rhodamine 6G as the target analyte. Based on the optical reflection measurement and finite difference time domain simulation result, the enhancement factor difference is attributable to plasmon resonance matching and to SERS "hot spots" distribution. With this simple, fast, and versatile complementary molding process, we can produce polymer SERS substrates with extremely low cost, high throughput, and high repeatability.

Paper Details

Date Published: 1 January 2011
PDF: 12 pages
J. Nanophoton. 5(1) 053526 doi: 10.1117/1.3663259
Published in: Journal of Nanophotonics Volume 5, Issue 1
Show Author Affiliations
Zhida Xu, Univ. of Illinois at Urbana-Champaign (United States)
Hsin-Yu Wu, Univ. of Illinois at Urbana-Champaign (United States)
Syed Usman Ali, Univ. of Illinois at Urbana-Champaign (United States)
Jing Jiang, Univ. of Illinois at Urbana-Champaign (United States)
Brian T. Cunningham, Univ. of Illinois at Urbana-Champaign (United States)
Logan Liu, Univ. of Illinois at Urbana-Champaign (United States)


© SPIE. Terms of Use
Back to Top