Generation of Spatially Broadband Twin Beams for Quantum Imaging
- 8 April 2008
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 100 (14), 143601
- https://doi.org/10.1103/physrevlett.100.143601
Abstract
We generate spatially multimode twin beams using 4-wave mixing in a hot atomic vapor in a phase-insensitive traveling-wave amplifier configuration. The far-field coherence area measured at 3.5 MHz is shown to be much smaller than the angular bandwidth of the process and bright twin images with independently quantum-correlated subareas can be generated with little distortion. The available transverse degrees of freedom form a high-dimensional Hilbert space that we use to produce quantum-correlated twin beams with finite orbital angular momentum.Keywords
This publication has 20 references indexed in Scilit:
- Ultraslow Propagation of Matched Pulses by Four-Wave Mixing in an Atomic VaporPhysical Review Letters, 2007
- Twisted photonsNature Physics, 2007
- Tools for Multimode Quantum Information: Modulation, Detection, and Spatial Quantum CorrelationsPhysical Review Letters, 2007
- homodyne detection as an optimal small-displacement and tilt-measurement schemePhysical Review A, 2006
- Experimental study of the spatial distribution of quantum correlations in a confocal optical parametric oscillatorPhysical Review A, 2003
- Quantum Limits on Optical ResolutionPhysical Review Letters, 2000
- Quantum cryptography using larger alphabetsPhysical Review A, 2000
- Noiseless Optical Amplification of ImagesPhysical Review Letters, 1999
- Efficient low-intensity optical phase conjugation based on coherent population trapping in sodiumOptics Letters, 1995
- Laser modes with helical wave frontsPhysical Review A, 1994