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Population Pumping of Excited Vibrational States by Spontaneous Surface-Enhanced Raman Scattering
Abstract
We observed significant transfer of ground state population to the first excited vibrational state by spontaneous surface-enhanced Raman scattering (SERS) which can be explained by unexpectedly large SERS cross sections. Evidence for this pumping includes (i) anti-Stokes to Stokes ratios which exceed those expected from a Boltzmann distribution, (ii) a quadratic dependence of the anti-Stokes signal on the excitation intensity, whereas the Stokes signal remains linearly dependent, and (iii) a component of $\ensuremath{\nu}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1$ to $\ensuremath{\nu}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}2$ Raman transitions in the SERS Stokes signals.
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Citations
Cited by
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Yu, D., Li, Y., Wang, M., Gu, J., Xu, W., Cai, H., Fang, X., & Zhang, X. (2022) · Molecular Cancer · doi:10.1186/s12943-022-01509-9 · Cited by 855
Fundamental understanding and applications of plasmon-enhanced Raman spectroscopy
Wang, X., Huang, S.-C., Hu, S., Yan, S., & Ren, B. (2020) · Nature Reviews Physics · doi:10.1038/s42254-020-0171-y · Cited by 689
Hu, M., Novo, C., Funston, A., Wang, H., Staleva, H., Zou, S., Mulvaney, P., Xia, Y., & Hartland, G. V. (2008) · Journal of Materials Chemistry · doi:10.1039/b714759g · Cited by 508
Analytical applications of Raman spectroscopy
Kudelski, A. (2008) · Talanta · doi:10.1016/j.talanta.2008.02.042 · Cited by 455
Metadata
- Authors
- Kneipp, K., Wang, Y., Kneipp, H., Itzkan, I., Dasari, R. R., & Feld, M. S.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 1996-04-01
- Volume
- 76
- Issue
- 14
- Pages
- 2444-2447
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2036232637
- Cited by
- 530
- References
- 0
- FWCI
- 3.77
- Type
- journal article
- Language
- en
- Open access
- closed
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- Kneipp, K., Wang, Y., Kneipp, H., Itzkan, I., Dasari, R. R., & Feld, M. S. (1996). Population Pumping of Excited Vibrational States by Spontaneous Surface-Enhanced Raman Scattering. Physical Review Letters. https://doi.org/10.1103/physrevlett.76.2444
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