TY - GEN
T1 - Complementary templated positive and inverse sub-micron pyramids array for surface enhanced raman spectroscopy
AU - Xu, Zhida
AU - Wu, Hsin Yu
AU - Ali, Syed Usman
AU - Jiang, Jing
AU - Cunningham, Brian T.
AU - Liu, Gang Logan
PY - 2011
Y1 - 2011
N2 - We demonstrate gold coated surface enhanced Raman scattering (SERS) substrates with a pair of complementary structures-positive and inverted pyramids array structures fabricated by polymer replication of each other. The SERS enhancement factors were measured uniformly as 7.2×104 for positive pyramids substrate while 1.6×106 for inverted pyramids substrate with Rhodamine 6G as the target analyte. Based on optical reflection measurement and finite difference time domain (FDTD) simulation result, we propose the explanation for the enhancement factor difference. It is attributed to plasmon resonance matching. With this simple, fast and versatile complementary molding process, we can produce SERS substrates with extremely low cost and high throughput.
AB - We demonstrate gold coated surface enhanced Raman scattering (SERS) substrates with a pair of complementary structures-positive and inverted pyramids array structures fabricated by polymer replication of each other. The SERS enhancement factors were measured uniformly as 7.2×104 for positive pyramids substrate while 1.6×106 for inverted pyramids substrate with Rhodamine 6G as the target analyte. Based on optical reflection measurement and finite difference time domain (FDTD) simulation result, we propose the explanation for the enhancement factor difference. It is attributed to plasmon resonance matching. With this simple, fast and versatile complementary molding process, we can produce SERS substrates with extremely low cost and high throughput.
KW - Complementary template molding
KW - FDTD simulation
KW - SERS
KW - Surface plasmon resonance
UR - http://www.scopus.com/inward/record.url?scp=84883789311&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84883789311&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84883789311
SN - 9781618395955
T3 - 15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011
SP - 562
EP - 564
BT - 15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011
T2 - 15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011
Y2 - 2 October 2011 through 6 October 2011
ER -