Entangled-photon compressive ghost imaging

Abstract

We have experimentally demonstrated high-resolution compressive ghost imaging at the single-photon level using entangled photons produced by a spontaneous parametric down-conversion source and using single-pixel detectors. For a given mean-squared error, the number of photons needed to reconstruct a two-dimensional image is found to be much smaller than that in quantum ghost imaging experiments employing a raster scan. This procedure not only shortens the data acquisition time, but also suggests a more economical use of photons for low-light-level and quantum image formation.

Structured image reconstruction for three-dimensional ghost imaging lidar

“…Ghost imaging has attracted much attention these years for its ability to acquire signals from sampling beyond Nyquist limit when combined with compressive sensing [1][2][3][4] and its potential applications in remote sensing, super-resolution microscopy, morphology component analysis, diffraction imaging, etc [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. In order to accurately determine the unknown targets in remote sensing, a large number of measurements are required in ghost imaging lidar, which limits its practical application significantly.…”

Characterization of frequency entanglement under extended phase-matching conditions

“…However, entanglement in continuous variables, such as photon quadrature, angular momentum [11], frequency [12][13][14], and wave vector [15], has attracted growing interests. Recently, frequency-entangled photon pairs have found various applications in areas of quantum-enhanced positioning and clock synchronization [16][17][18][19][20][21], quantum spectroscopy [22], quantum optical coherence tomography [23][24][25][26][27], quantum imaging [28,29], nonlinear microscopy [30][31][32], and quantum key distribution [33,34].…”

Ghost Imaging with Different Speckle Sizes of Thermal Light

“…Then a variety of thermal light sources [3][4][5][6][7][8] were used to realize GI. Recently some teams focused on the application of GI, such as GI by measuring reflected photons [9], compressive GI [10][11][12], GI through turbulent atmosphere [13], GI in turbid media [14]. However, only a few teams [7,15,16] focused on the impact of the speckle size on GI.…”