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
Ghost diffraction holographic microscopy
TL;DR: In this paper, an off-axis holography approach is introduced in the modified ghost diffraction system to realize a correlation hologram in the cross-correlation of intensities from two detectors in a modified interferometer setup.
DissertationDOI
Storage and manipulation of optical information using gradient echo memory in warm vapours and cold ensembles
TL;DR: In this paper, the gradient echo memory (GEM) was extended with the capability of storing a large amount of information at one time, achieving a coherence time of up to 80%.
Journal ArticleDOI
The impact of light polarization on imaging visibility of Nth-order intensity correlation with thermal light
TL;DR: In this paper, the relationship between the imaging visibility of arbitrary Nth-order intensity correlation with thermal light and light's degree of polarization was investigated, and it was shown that for the same order correlation, the value of visibility with partially polarized light is greater than natural light but smaller than that with completely polarized light, and the visibility in all three cases is remarkably enhanced as N increases.
Journal ArticleDOI
Photon-limited single-pixel imaging.
TL;DR: It is demonstrated theoretically and experimentally that the proposed photon-limited imaging technique can reconstruct a high-quality 3D image by using only one pulse each frame, thereby achieving a high photon efficiency of 0.01 detected photons per pixel.
Proceedings ArticleDOI
High-order thermal ghost imaging
TL;DR: In this article, the authors show that high-order ghost imaging has higher visibility and contrast-to-noise ratio as compared to conventional thermal ghost imaging, and obtain the optimal polynomial order that gives the best contrast to noise ratio.