Phenomenological local field enhancement factor distributions around electromagnetic hot spots
We propose a general phenomenological description of the enhancement factor distribution for surface-enhanced Raman scattering (SERS) and other related phenomena exploiting large local field enhancements at hot spots. This description extends naturally the particular case of a single (fixed) hot spo...
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| Veröffentlicht in: | The Journal of chemical physics 2009-05, Vol.130 (18), p.181101-181101-4 |
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| container_end_page | 181101-4 |
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| container_issue | 18 |
| container_start_page | 181101 |
| container_title | The Journal of chemical physics |
| container_volume | 130 |
| creator | Le Ru, E. C. Etchegoin, P. G. |
| description | We propose a general phenomenological description of the enhancement factor distribution for surface-enhanced Raman scattering (SERS) and other related phenomena exploiting large local field enhancements at hot spots. This description extends naturally the particular case of a single (fixed) hot spot, and it is expected to be "universal" for many classes of common SERS substrates containing a collection of electromagnetic hot spots with varying geometrical parameters. We further justify it from calculations with generalized Mie theory. The description studied here provides a useful starting point for a qualitative (and semiquantitative) understanding of experimental data and, in particular, the analysis of the statistics of single-molecule SERS events. |
| doi_str_mv | 10.1063/1.3138784 |
| format | Article |
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| ispartof | The Journal of chemical physics, 2009-05, Vol.130 (18), p.181101-181101-4 |
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| language | eng |
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| source | AIP Journals Complete; AIP Digital Archive; Alma/SFX Local Collection |
| title | Phenomenological local field enhancement factor distributions around electromagnetic hot spots |
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