2008
DOI: 10.1039/b707870f
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Vibrational pumping in surface enhanced Raman scattering (SERS)

Abstract: In this tutorial review, the underlying principles of vibrational pumping in surface enhanced Raman scattering (SERS) are summarized and explained within the framework of their historical development. Some state-of-the-art results in the field are also presented, with the aim of giving an overview on what has been established at this stage, as well as hinting at areas where future developments might take place.

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Cited by 81 publications
(136 citation statements)
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“…17 One could argue that the non-radiative component of ds/dO is irrelevant, because it is never observed in the far-field. Combined with the technique of bi-analyte SERS, it is possible to observe vibrational pumping in single molecules, 36 thus providing an ideal testing ground for these concepts. radiative + non-radiative) cross section is the relevant one.…”
Section: Non-radiative Cross Sections and Vibrational Pumpingmentioning
confidence: 99%
“…17 One could argue that the non-radiative component of ds/dO is irrelevant, because it is never observed in the far-field. Combined with the technique of bi-analyte SERS, it is possible to observe vibrational pumping in single molecules, 36 thus providing an ideal testing ground for these concepts. radiative + non-radiative) cross section is the relevant one.…”
Section: Non-radiative Cross Sections and Vibrational Pumpingmentioning
confidence: 99%
“…In the regime of vibrational pumping, can be quantified by simultaneously recording both the Stokes and anti-Stokes parts of the SERS spectrum and evaluating their ratio for each mode (10,11). The plasmon contribution to the population (arising from the quantum back-action mechanism) follows where is a Lorentzian profile of the field enhancement supported by the cavity resonance at frequency , illuminated by the laser with frequency .…”
mentioning
confidence: 99%
“…Como no caso em questão estamos considerando apenas os estados vibracionais fundamental e o primeiro excitado para descrição das intensidades anti-Stokes e Stokes, a aproximação do oscilador harmônico é uma boa aproximação pelo fato de que estes estados apresentam energias muito próximas ao mínimo da curva potencial para o modo vibracional em questão, para os quais, termos de anarmonicidade não causam efeitos significativos, na maioria dos casos. O mecanismo VP apesar de muito contestado e debatido na literatura tem sido demonstrado ser um efeito de elevada importância à baixas temperaturas [56,[58][59][60][61][62][63]. O efeito VP corresponde a uma perturbação no equilíbrio térmico e, desta forma, sua contribuição relativa ao efeito térmico será maior para temperaturas mais baixas [63].…”
Section: Eq 32unclassified
“…O mecanismo VP apesar de muito contestado e debatido na literatura tem sido demonstrado ser um efeito de elevada importância à baixas temperaturas [56,[58][59][60][61][62][63]. O efeito VP corresponde a uma perturbação no equilíbrio térmico e, desta forma, sua contribuição relativa ao efeito térmico será maior para temperaturas mais baixas [63]. …”
Section: Eq 32unclassified