Journal ArticleDOI
Optical imaging by means of two-photon quantum entanglement.
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TLDR
In this article, a two-photon optical imaging experiment was performed based on the quantum nature of the signal and idler photon pairs produced in spontaneous parametric down-conversion, where an aperture placed in front of a fixed detector is illuminated by the signal beam through a convex lens.Abstract:
A two-photon optical imaging experiment was performed based on the quantum nature of the signal and idler photon pairs produced in spontaneous parametric down-conversion. An aperture placed in front of a fixed detector is illuminated by the signal beam through a convex lens. A sharp magnified image of the aperture is found in the coincidence counting rate when a mobile detector is scanned in the transverse plane of the idler beam at a specific distance in relation to the lens.read more
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Journal ArticleDOI
Entanglement, intractability and no-signaling
TL;DR: In this paper, the authors consider the problem of deriving the no-signaling condition from the assumption that, as seen from a complexity theoretic perspective, the universe is not an exponential place.
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Hyperspectral imaging via a multiplexing digital micromirror device
TL;DR: In this article, the authors proposed a hyperspectral imaging system with a simple architecture, where a multiplexing digital micromirror device functions both as a spatial light modulator for spatial imaging and a diffractive grating for spectral measuring simultaneously.
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Journal ArticleDOI
Interference effects induced by non-local spatial filtering
TL;DR: It is shown theoretically that non- local spatial filtering can lead to counter-intuitive effects when the pump beam is no longer given by a Gaussian profile, and increased non-local filtering can actually decrease the visibility of interference fringes, contrary to what has been observed so far.
Journal ArticleDOI
Multipath effect constraint of pseudo-thermal light source in ghost imaging
TL;DR: In this article, the influence of the multipath effect on the performance of ghost imaging is investigated numerically and experimentally and compared with the traditional ghost imaging using transmitted light from ground glass as the light source.