Shot-by-shot imaging of Hong-Ou-Mandel interference with an intensified sCMOS camera

Abstract

We report the first observation of Hong-Ou-Mandel (HOM) interference of highly indistinguishable photon pairs with spatial resolution. Direct imaging of two-photon coalescence with an intensified sCMOS camera system clearly reveals spatially separated photons appearing pairwise within one of the two modes. With the use of the camera system we quantified the number of pairs and recovered the full HOM dip yielding 96.3% interference visibility, as well as retrieved the number of coalesced pairs. We retrieved the spatial mode structure of both interfering photons by performing a proof-of-principle demonstration of a new, low noise high resolution coincidence imaging scheme.

Link to the movie: http://youtu.be/g8wP4V5GDTI

References in corpus (5)

• Experimental realization of sub-shot-noise quantum imaging
• Imaging with a small number of photons
• Imaging high-dimensional spatial entanglement with a camera
• Hamiltonian design in readout from room-temperature Raman atomic memory
• Spatial properties of twin-beam correlations at low- to high-intensity transition

Cited by in corpus (4)

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• Multivariate Discrimination in Quantum Target Detection
• A 50/50 electronic beam splitter in graphene nanoribbons as a building block for electron optics
• Observation of two-photon interference effect with single non-photon-number resolving detector