Possible rationale for ultimate enhancement factor in single molecule Raman spectroscopy

被引：40
作者：
Gaponenko, S. V. [1 ]
Guzatov, D. V. [2 ]
机构：
[1] Natl Acad Sci Belarus, BI Stepanov Phys Inst, Minsk 220072, BELARUS
[2] Y Kupala State Univ, Grodno 230023, BELARUS
来源：
CHEMICAL PHYSICS LETTERS | 2009年 / 477卷 / 4-6期
关键词：
SPONTANEOUS EMISSION; QUANTUM-THEORY; SCATTERING;
D O I：
10.1016/j.cplett.2009.07.043
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The Purcell's original idea [E. M. Purcell, Phys. Rev. 69 ( 1946) 682] on modification of photon spontaneous emission rate is extended to modification of photon spontaneous scattering rate. Simultaneous account for local incident field and local density of photon states enhancements in close proximity to a silver spheroid is found to provide up to 10(14)-fold Raman scattering cross-section rise up. A model of the so-called 'hot spots' in surface enhanced spectroscopy is elaborated as local areas with high Q-factor at incident and scattered (emitted) light frequencies. Transient Raman experiments are proposed towards verification of the model. (C) 2009 Published by Elsevier B. V.
引用
收藏
页码：411 / 414
页数：4
相关论文
共 33 条
  • [1] Enhancement and quenching of single-molecule fluorescence
    Anger, P
    Bharadwaj, P
    Novotny, L
    [J]. PHYSICAL REVIEW LETTERS, 2006, 96 (11)
  • [2] Barnes WL, 1998, J MOD OPTIC, V45, P661, DOI 10.1080/09500349808230614
  • [3] Sum rule for modified spontaneous emission rates
    Barnett, SM
    Loudon, R
    [J]. PHYSICAL REVIEW LETTERS, 1996, 77 (12) : 2444 - 2446
  • [4] Spontaneous decay of excited atomic states near a carbon nanotube
    Bondarev, IV
    Slepyan, GY
    Maksimenko, SA
    [J]. PHYSICAL REVIEW LETTERS, 2002, 89 (11) : 1 - 115504
  • [5] BYKOV VP, 1993, RAD ATOMS RESONANT E
  • [6] Chang R.K., 1981, Surface Enhanced Raman Scattering
  • [7] Imaging the local density of states of optical corrals
    Chicanne, C
    David, T
    Quidant, R
    Weeber, JC
    Lacroute, Y
    Bourillot, E
    Dereux, A
    des Francs, GC
    Girard, C
    [J]. PHYSICAL REVIEW LETTERS, 2002, 88 (09) : 4 - 974024
  • [8] Electromagnetic density of modes for a finite-size three-dimensional structure
    D'Aguanno, G
    Mattiucci, N
    Centini, M
    Scalora, M
    Bloemer, MJ
    [J]. PHYSICAL REVIEW E, 2004, 69 (05): : 4
  • [9] The quantum theory of the emission and absorption of radiation
    Dirac, PAM
    [J]. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-CONTAINING PAPERS OF A MATHEMATICAL AND PHYSICAL CHARACTER, 1927, 114 (767) : 243 - 265
  • [10] Gaponenko S. V., 2009, INTRO NANOPHOTONICS
1234