Journal
LANGMUIR
Volume 25, Issue 3, Pages 1790-1794Publisher
AMER CHEMICAL SOC
DOI: 10.1021/la803357q
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Funding
- Army Research Office [N00014-03-M-0325, W91INF-05-1-0341]
- NDSEG
- LANL Agnew Postdoctoral Fellowship
- LANL LDRD program
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [0754227] Funding Source: National Science Foundation
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We present a new type of surface-enhanced Raman scattering (SERS) substrate that exhibits extremely large and uniform cross-section enhancements over a macroscopic (greater than 25 mm(2)) area. The substrates are fabricated using a femtosecond laser nanostructuring process, followed by thermal deposition of silver. SERS signals from adsorbed molecules show a spatially uniform enhancement factor of approximately 10(7). Spectroscopic characterization of these substrates suggests their potential for use in few or single-molecule Raman spectroscopy.
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