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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 2 — Jan. 15, 2014
  • pp: 390–393

Two-photon quantum interference in plasmonics: theory and applications

S. Dutta Gupta and G. S. Agarwal  »View Author Affiliations

Optics Letters, Vol. 39, Issue 2, pp. 390-393 (2014)

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We report perfect two-photon quantum interference with near-unity visibility in a resonant tunneling plasmonic structure in folded Kretschmann geometry. This is despite absorption-induced loss of unitarity in plasmonic systems. The effect is traced to perfect destructive interference between the squares of amplitude reflection and transmission coefficients. We further highlight yet another remarkable potential of coincidence measurements as a probe with better resolution as compared to standard spectroscopic techniques. The finer features show up in both angle resolved and frequency resolved studies.

© 2014 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(240.7040) Optics at surfaces : Tunneling
(270.0270) Quantum optics : Quantum optics

ToC Category:
Optics at Surfaces

Original Manuscript: October 24, 2013
Revised Manuscript: December 6, 2013
Manuscript Accepted: December 6, 2013
Published: January 15, 2014

S. Dutta Gupta and G. S. Agarwal, "Two-photon quantum interference in plasmonics: theory and applications," Opt. Lett. 39, 390-393 (2014)

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