Photon coincidences in spontaneous parametric down-converted radiation excited by a blue LED in bulk LiIO_3 crystal | Zendy

Justinas Galinis | Zendy; Michał Karpiński | Zendy; G. Tamošauskas | Zendy; Krzysztof Dobek | Zendy; A. Piskarskas | Zendy

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Photon coincidences in spontaneous parametric down-converted radiation excited by a blue LED in bulk LiIO_3 crystal

Author(s) -

Justinas Galinis,

Michał Karpiński,

G. Tamošauskas,

Krzysztof Dobek,

A. Piskarskas

Publication year - 2011

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.19.010351

Subject(s) - spontaneous parametric down conversion , photon , optics , excited state , coincidence , crystal (programming language) , brightness , physics , parametric statistics , atomic physics , radiation , amplified spontaneous emission , blue laser , materials science , optoelectronics , laser , quantum , quantum entanglement , quantum mechanics , medicine , statistics , alternative medicine , mathematics , pathology , computer science , programming language

We report on experimental and numerical investigation of two-photon coincidence properties of the parametric spontaneous down-converted field excited by a high brightness blue LED in bulk lithium iodate crystal. Ratio of up to 11.5% of coincidence, which cannot be attributed to classical coincidences, to single photon counts was recorded at the outputs of multimode fibers, demonstrating well-preserved biphoton property. This result, combined with practically useful power of the source, suggests its possible application for a class of quantum experiments.

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