Optical Phase Conjugation with Less Than a Photon per Degree of Freedom

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We demonstrate experimentally that optical phase conjugation can be used to focus light through strongly scattering media even when far less than a photon per optical degree of freedom is detected. We found that the best achievable intensity contrast is equal to the total number of detected photons, as long as the resolution of the system is high enough. Our results demonstrate that phase conjugation can be used even when the photon budget is extremely low, such as in high-speed focusing through dynamic media or imaging deep inside tissue.
Publisher
AMER PHYSICAL SOC
Issue Date
2017-03
Language
English
Article Type
Article
Citation

PHYSICAL REVIEW LETTERS, v.118, no.9

ISSN
0031-9007
DOI
10.1103/PhysRevLett.118.093902
URI
http://hdl.handle.net/10203/268695
Appears in Collection
BiS-Journal Papers(저널논문)
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