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- W1657502277 abstract "We extend the Purcell's original idea [Phys. Rev. textbf{69}, 682 (1946)] on modification of photon spontaneous textit{emission} rate to modification of photon spontaneous textit{scattering} rate. We find the interplay of local incident field enhancement and local density of photon states enhancement in close proximity to a silver nanoparticle may result in up to $10^{14}$-fold rise of Raman scattering cross-section. Thus single molecule Raman detection is found to be explained by consistent quantum electrodynamic description without any chemical mechanism involved. A model of the so-called hot points in surface enhanced spectroscopy has been elaborated as local areas with high Q-factor at incident and scattered (emitted) light frequencies. For verification of the model we consider further experiments including transient Raman experiments to clarify incident field enhancement and scanning near-field optical mapping of local density of photon states." @default.
- W1657502277 created "2016-06-24" @default.
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- W1657502277 date "2008-11-11" @default.
- W1657502277 modified "2023-09-27" @default.
- W1657502277 title "Rationale for $10^{14}$ enhancement factor in single molecule Raman spectroscopy" @default.
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