Tailoring and enhancing spontaneous two-photon emission using resonant plasmonic nanostructures

Alexander N. Poddubny, Pavel Ginzburg, Pavel A. Belov, Anatoly V. Zayats, and Yuri S. Kivshar
Phys. Rev. A 86, 033826 – Published 20 September 2012
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  • INTRODUCTION
  • THEORETICAL MODEL
  • NUMERICAL EXAMPLE
  • CONCLUSIONS
  • ACKNOWLEDGEMENTS
    • References

    Abstract

    The rate of spontaneous emission is known to depend on the environment of a emitter, and the enhancement of one-photon emission in a resonant cavity is known as the Purcell effect. Here we develop a theory of spontaneous two-photon emission for a general electromagnetic environment including inhomogeneous dispersive and absorptive media. This theory is used to evaluate the two-photon Purcell enhancement in the vicinity of metallic nanoparticles and demonstrates that the surface-plasmon resonances supported by these particles can increase the emission rate by more than two orders of magnitude. The control over two-photon Purcell enhancement given by tailored nanostructured environments could provide an emitter with any desired spectral response and may serve as an ultimate route for designing light sources with novel properties.

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    • Received 7 March 2012

    DOI:https://doi.org/10.1103/PhysRevA.86.033826

    ©2012 American Physical Society

    Authors & Affiliations

    Alexander N. Poddubny1,3, Pavel Ginzburg2,*, Pavel A. Belov1,4, Anatoly V. Zayats2, and Yuri S. Kivshar1,5

    • 1National University for Information Technology, Mechanics and Optics (ITMO), St. Petersburg 197101, Russia
    • 2Department of Physics, King's College London, Strand, London WC2R 2LS, United Kingdom
    • 3Ioffe Physical-Technical Institute of the Russian Academy of Sciences, St. Petersburg 194021, Russia
    • 4School of Electronic Engineering and Computer Science, Queen Mary University of London, London E1 4NS, United Kingdom
    • 5Nonlinear Physics Center and Center for Ultrahigh-bandwidth Devices for Optical Systems (CUDOS), Australian National University, Canberra ACT 0200, Australia

    • *Corresponding author: pavel.ginzburg@kcl.ac.uk

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    Issue

    Vol. 86, Iss. 3 — September 2012

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