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

@article{Scalora2013SpontaneousAS,
  title={Spontaneous and stimulated Raman scattering near metal nanostructures in the ultrafast, high-intensity regime},
  author={Michael Scalora and Maria Antonietta Vincenti and Domenico de Ceglia and Marco Grande and Joseph W. Haus},
  journal={Journal of The Optical Society of America B-optical Physics},
  year={2013},
  volume={30},
  pages={2634-2639}
}
  • M. ScaloraM. Vincenti J. Haus
  • Published 2 May 2013
  • Chemistry, Physics
  • Journal of The Optical Society of America B-optical Physics
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… 

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References

SHOWING 1-10 OF 16 REFERENCES

Raman Scattering near Metal Nanostructures

We study Raman scattering in active media placed in proximity to different types of metal nanostructures, at wavelengths that display either Fabry–Perot or plasmonic resonances, or a combination of

Pulse-energy statistics in stimulated Raman scattering.

The probability distribution P(W) for the energy W of pulses generated by transient stimulated Raman scattering is calculated and it is found that 100% macroscopic fluctuations are predicted, implying that the most probable value for Stokes pulse energy is near zero.

Ultrafast intrinsic optical switching in a dense medium of two-level atoms.

A signature of near dipole-dipole interaction is found which may provide a useful method for validating the first-principles model, for measuring the strength of the interaction, and for coherent pumping.

Spontaneous generation of phase waves and solitons in stimulated Raman scattering. II. Quantum statistics of Raman-soliton generation.

  • EnglundBowden
  • Physics, Chemistry
    Physical review. A, Atomic, molecular, and optical physics
  • 1992
The formalism of Englund and Bowden is used to conduct a detailed investigation into the statistics of spontaneously generated Raman solitons and their origin in phase waves.

Surface-enhanced Raman scattering from finite arrays of gold nano-patches

We experimentally investigate the surface-enhanced Raman scattering (SERS) response of a 2D-periodic array of square gold nano-patches, functionalized by means of a conjugated, rigid thiol. We

Experimental surface-enhanced Raman scattering response of two-dimensional finite arrays of gold nanopatches

We experimentally investigate the nonlinear response of two-dimensional periodic arrays composed of gold nanopatches on silicon substrate, functionalized by means of a conjugated rigid thiol. The

Nonlinear optics.

In this method, non-linear susceptibility tensors are introduced which relate the induced dipole moment to a power series expansion in field strengths and the various experimental observations are described and interpreted in terms of this formalism.

Intrinsic Limitations on the |E| 4 Dependence of the Enhancement Factor for Surface-Enhanced Raman Scattering

Analysis of the bandwidth of the Clausius−Mosotti local field factor challenges the standard assumption that both incident and scattered fields are equally enhanced in surface-enhanced Raman scatte...

Solitons and four-wave mixing.

The formalism for studying transient four-wave-mixing phenomena in a Raman medium is developed, and the problems of second-Stokes generation, anti- Stokes scattering, and two-pump Raman scattering are considered.

Near-dipole-dipole effects in dense media: Generalized Maxwell-Bloch equations.

  • BowdenDowling
  • Physics, Geology
    Physical review. A, Atomic, molecular, and optical physics
  • 1993
A self-consistent generalization of the Maxwell-Bloch formulation is presented here for a nonlinear system of saturable two-level atoms interacting with the electromagnetic field, under the condition that the atomic density is such that near-dipole-Dipole interactions, which lead to local-field corrections, cannot be neglected.