EPR-based ghost imaging using a single-photon-sensitive camera
By R. Aspden, D. S. Tasca, R. W. Boyd, Miles J. Padgett. 2012
154 citations recorded by the source corpus.
Correlated photon imaging, popularly known as ghost imaging, is a technique whereby an image is formed from light that has never interacted with the object. In ghost imaging experiments, two correlated light fields are produced. One of these fields illuminates the object, and the other field is measured by a spatially resolving detector. In the quantum regime, these correlated light fields are produced by entangled photons created by spontaneous parametric down-conversion. To date, all correlated photon ghost imaging experiments have scanned a single-pixel detector through the field of view to obtain spatial information. However, scanning leads to poor sampling efficiency, which scales inversely with the number of pixels, N, in the image. In this work, we overcome this limitation by using a time-gated camera to record the single-photon events across the full scene. We obtain high-contrast images, 90%, in either the image plane or the far field of the photon pair source, taking advantage of the Einstein–Podolsky–Rosen-like correlations in position and momentum of the photon pairs. Our images contain a large number of modes, >500, creating opportunities in low-light-level imaging and in quantum information processing.
Subfields: Acoustics and Ultrasonics, Artificial Intelligence, Cognitive Neuroscience
View Paper: https://www.semanticscholar.org/paper/c362b37c681ff16e57f65152cca60db8bbdc3473
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In Acoustics and Ultrasonics
In Artificial Intelligence
In Cognitive Neuroscience
Citations in the corpus
- Imaging with a small number of photons (2014, methodology): “Photon counting is possible by applying a binary threshold to the value of each pixel in the data read from the ICCD, a fuller description of which is provided in reference [12].”
- Imaging with quantum states of light (2019, methodology): “EPR based imaging was demonstrated [72] by triggering an ICCD camera with a SPAD whose detection of a photon heralds the arrival of its entangled twin.”