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Chinese Physics Letters

Fourth-Order Interference in Femtosecond Spontaneous Parametric Down-Conversion

Yun-Kun Jiang, Bao-Sen Shi, Jian Li, Xiao-Feng Fan, Guo Guang-Can

Published Oct 1, 2000• 2 citations
Publisher

Abstract

We report a fourth-order interference experiment in which pairs of photons are produced in spontaneous parametric down-conversion pumped by femtosecond pulses interfere in a Hong-Ou-Mandel interferometer. The visibility of the interference is (64±4)%, exceeding the bound of 50% predicted by classical interference theory.
DOI
10.1088/0256-307x/17/10/009

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