Levy statistics of vibrational mode fluctuations of single molecules from surface-enhanced raman scattering

被引：47

作者：

Bizzarri, AR ^{[1
]}

Cannistraro, S ^{[1
]}

机构：

[1] Univ Tuscia, Dipartimento Sci Ambientali, Biophys & Nanosci Ctr, I-01100 Viterbo, Italy

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.94.068303

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Surface-enhanced Raman spectra of a single Fe-protoporphyrin IX molecule display drastic fluctuations in frequency and intensity. When analyzed in their temporal evolution, the vibrational modes of the molecule undergo an on-off switching behavior that is shown to follow a Levy statistics. Such a time dependent process may encode both the dynamics of the molecule-environment interactions and the intrinsic gating or activation of the mode emission mechanism.

引用

页数：4

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