Spectral properties of entangled photons generated via type-I frequency-nondegenerate spontaneous parametric down-conversion

So Young Baek, Yoon Ho Kim

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Spectral properties of entangled photons generated via type-I frequency-nondegenerate spontaneous parametric down-conversion are studied theoretically and experimentally. For monochromatic pumping, the joint spectral intensity function for the photon pair is found to be symmetric even though each photon has a different central wavelength. The single-photon (first-order) interference shows the familiar triangular interferogram, usually associated with the cw-pumped frequency-degenerate type-II spontaneous parametric down-conversion. For broadband (ultrafast) pumping, on the other hand, the joint spectral intensity function is shown to be asymmetric, similar to the case of ultrafast-pumped frequency-degenerate type-II spontaneous parametric down-conversion. The spectral studies reported here are expected to play an important role in developing ultrabright two-color entangled photon sources.

Original languageEnglish
Article number033814
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume80
Issue number3
DOIs
Publication statusPublished - 2009 Sep 9
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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