Two-photon quantum interference in plasmonics: theory and applications. Academic Article uri icon


  • 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.

published proceedings

  • Opt Lett

altmetric score

  • 1.6

author list (cited authors)

  • Gupta, S. D., & Agarwal, G. S.

citation count

  • 22

complete list of authors

  • Gupta, S Dutta||Agarwal, GS

publication date

  • January 2014