Spontaneous and Stimulated Raman Scattering near Metal Nanostructures in the Ultrafast, High-Intensity Regime

Author(s)

Michael Scalora, Charles M. Bowden Research Center
Maria Antonietta Vincenti, Charles M. Bowden Research Center
Domenico de Ceglia, Charles M. Bowden Research Center
Marco Grande, Politecnico di Bari
Joseph W. Haus, University of DaytonFollow

Document Type

Article

Publication Date

10-2013

Publication Source

Journal of the Optical Society of America B

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.

Inclusive pages

2634-2639

ISBN/ISSN

0740-3224

Comments

Permission documentation is on file.

Copyright

Copyright © 2013, Optical Society of America

Publisher

Optical Society of America

Volume

30

Peer Reviewed

yes

Issue

10

eCommons Citation

Scalora, Michael; Vincenti, Maria Antonietta; de Ceglia, Domenico; Grande, Marco; and Haus, Joseph W., "Spontaneous and Stimulated Raman Scattering near Metal Nanostructures in the Ultrafast, High-Intensity Regime" (2013). Electrical and Computer Engineering Faculty Publications. 279.
https://ecommons.udayton.edu/ece_fac_pub/279