Nonlocal pulse shaping with entangled photon pairs

Year: 2003

Authors: Bellini M., Marin F., Viciani S., Zavatta A., Arecchi F.T.

Autors Affiliation: Istituto Nazionale di Ottica Applicata, Largo E. Fermi 6, 50125 Firenze, Italy;
Department of Physics, University of Florence, Florence, Italy;
Department of Systems and Computer Science, University of Florence, Florence, Italy;
Istituto Nazionale di Fisica della Materia, Unità di Firenze, Florence, Italy

Abstract: Nonlocal shaping effects in the time or spectral profiles of an entangled photon pair emerging from a pulsed parametric down-converter are observed by spectrally or temporally filtering one of the twin beams. In particular, we demonstrate the appearance of fourth-order (“ghost”) interference fringes in the spectrum of one beam conditioned by photodetection at the output of an unbalanced Michelson interferometer placed in the path of the other beam. The coherence time of the pump is the limiting factor for the sharpness of the details in the shaped biphoton spectrum.

Journal/Review: PHYSICAL REVIEW LETTERS

Volume: 90 (4)      Pages from: 043602-1  to: 043602-4

KeyWords: Bandwidth; Interferometers; Light interference; Monochromators; Optical filters; Photons, Nonlocal shaping effects, Quantum theory; Qunatum interference; Ghost interference; Double-slit; Time
DOI: 10.1103/PhysRevLett.90.043602

Citations: 59
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