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Measurement of subpicosecond time intervals between two photons by interference

Physical Review Letters · 1987 · Vol. 59(18) · pp. 2044–2046

C. K. Hong✉(University of Rochester)Z. Y. Ou(University of Rochester)L. Mandeļ(University of Rochester)

Abstract

A fourth-order interference technique has been used to measure the time intervals between two photons, and by implication the length of the photon wave packet, produced in the process of parametric down-conversion. The width of the time-interval distribution, which is largely determined by an interference filter, is found to be about 100 fs, with an accuracy that could, in principle, be less than 1 fs.

Laser-Matter Interactions and Applications Advanced Fluorescence Microscopy Techniques Quantum optics and atomic interactionsInterference (communication)PhotonMeasure (data warehouse)Parametric statisticsPhysicsOpticsSpontaneous parametric down-conversionWave packetInterval (graph theory)Filter (signal processing)

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