Interfering entangled photons of different colors

T Larchuk, R.A. Campos, JG Rarity, P.R. Tapster, E Jakeman, B.E.A. Saleh, M.C. Teich

Research output: Contribution to journalArticle (Academic Journal)peer-review

63 Citations (Scopus)


The authors have observed unusual second- and fourth-order interference patterns when entangled photons with center-wavelength differences ≈40 nm are mixed together at single or dual Mach-Zehnder interferometers. The difference frequency of the photons appears directly in the spectrum of the coincidence rate. This phase-sensitive behavior can reveal center-frequency differences from zero to hundreds of THz
Translated title of the contributionInterfering entangled photons of different colors
Original languageEnglish
Pages (from-to)1603 - 1606
Number of pages4
JournalPhysical Review Letters
Volume70 (11)
Publication statusPublished - Mar 1993

Bibliographical note

Publisher: American Physical Society

Structured keywords

  • Photonics and Quantum


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