Diffraction and interference of entangled photon pairs generated by parametric down-conversion: a spatial correlation effect

Author

Shimizu, Ryosuke ; Edamatsu, Keiichi ; Itoh, Tadashi

Author_Institution

Div. of Mater. Phys., Osaka Univ., Toyonaka, Japan

fYear

2003

fDate

22-27 June 2003

Firstpage

341

Abstract

Diffraction-interference patterns of parametric down-converted photons through a transmission grating by both one- and two-photon detection schemes are presented. The measured patterns are explained by the Fourier analysis of the two-photon wave packet, considering the quantum spatial correlation between the constituent photons. Spatial diffraction-interference patterns were recorded by a two-photon detector consisting of two avalanche photodiodes. For comparison, diffraction-interference patterns of Ti:sapphire laser are also observed using the same apparatus (a uncorrelated case).

Keywords

Fourier analysis; avalanche photodiodes; diffraction gratings; light diffraction; light interference; optical correlation; optical frequency conversion; photodetectors; quantum entanglement; quantum optics; solid lasers; titanium; two-photon processes; Al₂O₃:Ti; Fourier analysis; Ti:sapphire laser; avalanche photodiodes; diffraction-interference patterns; entangled photon pairs; one-photon detection; parametric down-conversion; quantum spatial correlation; spatial correlation effect; transmission grating; two-photon detection; two-photon wave packet; Diffraction gratings; Frequency; High-resolution imaging; Interference; Laser excitation; Laser modes; Optical harmonic generation; Pattern analysis; Photonic crystals; Quantum entanglement;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics Conference, 2003. EQEC '03. European

Print_ISBN

0-7803-7733-8

Type

conf

DOI

10.1109/EQEC.2003.1314198

Filename

1314198