Transverse coherence length of down-converted light in the two-photon state

Authors
Fonseca, EJS Monken, CH Padua, S Barbosa, GA
Citation
Ejs. Fonseca et al., Transverse coherence length of down-converted light in the two-photon state, PHYS REV A, 59(2), 1999, pp. 1608-1614
Citations number
20
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW A
ISSN journal
10502947 → ACNP
Volume
59
Issue
2
Year of publication
1999
Pages
1608 - 1614
Database
ISI
SICI code
1050-2947(199902)59:2<1608:TCLODL>2.0.ZU;2-M
Abstract
Measurements of the Young interference pattern for down-converted light in the two-photon state an performed. Light in the two-photon state is generat ed at the output of a Hong-Ou-Mandel balanced interferometer. Two-photon in terference patterns with visibilities up to 100% are obtained. Visibilities of the two-photon interference patterns as a function of the double-slit s eparation are obtained and show that the transverse coherence length of the two-photon light is much larger than the one-photon beam for the distances considered in the experiment. [S1050-2947(99)05702-9].