Hong-Ou-Mandel interferometer with one and two photon pairs

Autor:	Fabio Antonio Bovino, S. Pádua, O. Cosme, A. Mazzei, Fabio Sciarrino, Francesco De Martini
Jazyk:	angličtina
Rok vydání:	2008
Předmět:	Physics Interferometric visibility Photon business.industry Physics::Optics Nonlinear optics Interference (wave propagation) Atomic and Molecular Physics and Optics law.invention Interferometry Optics law Laser beam quality business Beam splitter Beam (structure)
Popis:	We study the Hong-Ou-Mandel interferometer in the regime of spontaneous parametric down-conversion with high pump beam power at the crystal. In this regime one and two photons from a pump pulsed laser beam generate one and two pairs of photons, respectively. These photons are then directed to the beam splitter of the interferometer and detected at its exit in coincidence. An interesting phenomenon is observed: The reduction of the visibility of the Hong-Ou-Mandel coincidence peak (or dip) with the increase of pump power. We study the relation between the visibility of the fourth-order interference pattern and the power of the pumping laser beam for type I and type II phase-matching crystals. Our theoretical calculations are in good agreement with the experimental results.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39efe3668f6edcf718250803222ed13f http://hdl.handle.net/11573/228354 Zobrazit plný text záznamu