Excitation profiles of surface-enhanced hyper-Raman scattering (SEHRS) and surface-enhanced Raman scattering (SERS) of crystal violet on colloidal silver were measured using 1 ps Ti:sapphire laser pulses at wavelengths between 750 and 830 nm. Our measurements allowed the direct determination of the
Tunable laser excitation profile of surface enhanced raman scattering from pyridine adsorbed on a copper electrode surface
โ Scribed by Craig S. Allen; George C. Schatz; Richard P. Van Duyne
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 425 KB
- Volume
- 75
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
The wavelength dependence of surface enhanced Raman (SER) scattermg from pyndme on a copper electrode surface has been measured and found to correlate closely wrth the optrcal propertres of copper metal. The results are interpreted III the hght of the image field model of the SER mechanism.
๐ SIMILAR VOLUMES
SERS from crystal rlolct (CV) on a Ag clectrodc was mvcslqakd under prcrrsonsncc and resonance condltlons. The ckcll~llon prolilc of the chcmaorbcd spccics is Me that of chsrolvcd mokculcs but mtcnsltirs ZUIL' =I000 tnncs luger. The Raman enhancement IS = IO8 and ckhlblts 3 spcc~lic potcntlal dcpcnd
The short-range component of SERS IS tnvcstigated usu-~g a new probe molecule, lhlourca Through a study of the chxactcnstics or thiourea ndsarbcd on a sliver clectrodc we conclude that remnant surFace complexes arc not a un~vcrul rcquircment for large enhancement. We lurther show that the npphul vol