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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Grover Swartzlander
  • Vol. 30, Iss. 10 — Oct. 1, 2013
  • pp: 2634–2639

Spontaneous and stimulated Raman scattering near metal nanostructures in the ultrafast, high-intensity regime

M. Scalora, M. A. Vincenti, D. de Ceglia, M. Grande, and J. W. Haus  »View Author Affiliations


JOSA B, Vol. 30, Issue 10, pp. 2634-2639 (2013)
http://dx.doi.org/10.1364/JOSAB.30.002634


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Abstract

The inclusion of atomic inversion in Raman scattering can significantly alter field dynamics in plasmonic settings. Our calculations show that large local fields and femtosecond pulses combine to yield (i) population inversion within hot spots, (ii) gain saturation, and (iii) conversion efficiencies characterized by a switch-like transition to the stimulated regime that spans 12 orders of magnitude. While in Raman scattering atomic inversion is usually neglected, we demonstrate that in some circumstances full accounting of the dynamics of the Bloch vector is required.

© 2013 Optical Society of America

OCIS Codes
(240.4350) Optics at surfaces : Nonlinear optics at surfaces
(270.1670) Quantum optics : Coherent optical effects
(320.5550) Ultrafast optics : Pulses
(240.6695) Optics at surfaces : Surface-enhanced Raman scattering

ToC Category:
Optics at Surfaces

History
Original Manuscript: May 15, 2013
Revised Manuscript: July 8, 2013
Manuscript Accepted: August 19, 2013
Published: September 9, 2013

Citation
M. Scalora, M. A. Vincenti, D. de Ceglia, M. Grande, and J. W. Haus, "Spontaneous and stimulated Raman scattering near metal nanostructures in the ultrafast, high-intensity regime," J. Opt. Soc. Am. B 30, 2634-2639 (2013)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-30-10-2634

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