Quantum Ghost Image Identification with Correlated Photon Pairs
- 23 April 2010
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 104 (16), 163602
- https://doi.org/10.1103/physrevlett.104.163602
Abstract
Ghost imaging can be performed using either quantum or classical states of light that possess strong spatial correlations. In both cases, the image is formed by averaging over many optical events. Here we show that it is possible to distinguish an object from a preestablished basis set of objects by using a small number of position-correlated photon pairs produced by spontaneous parametric down-conversion. The signal photon is incident on one member of a set of spatially nonoverlapping objects. The “ghost” image information is impressed upon the spatially separated idler photon and is extracted by means of holographic filtering and coincidence detection. We were able to distinguish among sets of two and four spatially nonoverlapping objects with confidence levels higher than 87% and 81%, respectively. This method of ghost imaging can be performed in situations requiring extremely low light levels.This publication has 18 references indexed in Scilit:
- Discriminating orthogonal single-photon imagesPhysical Review A, 2009
- A high-speed image sensing technique with adjustable frame rate based on an ordinary CCDOptik, 2008
- Transverse entanglement migration in Hilbert spacePhysical Review A, 2007
- High-Resolution Ghost Image and Ghost Diffraction Experiments with Thermal LightPhysical Review Letters, 2005
- Ghost Imaging with Thermal Light: Comparing Entanglement and ClassicalCorrelationPhysical Review Letters, 2004
- Entangled-photon Fourier opticsJournal of the Optical Society of America B, 2002
- Quantum Interferometric Optical Lithography: Exploiting Entanglement to Beat the Diffraction LimitPhysical Review Letters, 2000
- Optical imaging by means of two-photon quantum entanglementPhysical Review A, 1995
- Proposed Experiment to Test Local Hidden-Variable TheoriesPhysical Review Letters, 1969
- An introduction to matched filtersIEEE Transactions on Information Theory, 1960