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Overcoming the shot-noise limitation of three-dimensional active imaging |
Optics Letters, Vol. 36, Issue 8, pp. 1434-1436 (2011)
http://dx.doi.org/10.1364/OL.36.001434
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Abstract
Depth resolution is limited by the photoelectron shot noise in conventional gain-modulated active three- dimensional (3D) imaging methods. A proposed method, which is based on photon intensity correlation, is presented to overcome the depth resolution limitation. The signal photons are amplified by an imaging intensifier, and are then divided into two beams by a beam splitter. The theory shows that the shot-noise limitation is broken using the strong intensity coherence between the two beams. The experiment results show that the depth resolution of the correlated active 3D imaging method is three times better than that of the shot-noise limitation.
© 2011 Optical Society of America
OCIS Codes
(110.6880) Imaging systems : Three-dimensional image acquisition
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
ToC Category:
Imaging Systems
History
Original Manuscript: January 21, 2011
Revised Manuscript: March 17, 2011
Manuscript Accepted: March 23, 2011
Published: April 13, 2011
Citation
Xiuda Zhang, Huimin Yan, and Qin Zhou, "Overcoming the shot-noise limitation of three-dimensional active imaging," Opt. Lett. 36, 1434-1436 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-8-1434
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