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4 October 2024 Ghost displacement: imaging by measuring nothing
Arran Sykes, Harmony Li, Ugo Zanforlin, Aurora Maccarone, Gerald S. Buller, John Jeffers
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Proceedings Volume PC13148, Quantum Communications and Quantum Imaging XXII; PC1314801 (2024) https://doi.org/10.1117/12.3028042
Event: Optical Engineering + Applications, 2024, San Diego, California, United States
Abstract
We describe ghost displacement in which one of a pair of correlated beam is first displaced coherently before passing through an object and then being detected. When the detector does not fire, the beam that does not interact with the object receives a nonlocal displacement at transverse spatial locations where the object is transparent. This allows an image to be formed in correlation. The method has previously been used in single mode fiber to transfer amplitude and phase information nonlocally and covertly. We introduce an experimental method for performing imaging via ghost displacement. We use a pulsed 842.2nm VCSEL to generate pseudo-thermal light via amplitude and phase modulation and obtain correlated twin beams using a beam splitter and we show the first experimental results from this system.
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Arran Sykes, Harmony Li, Ugo Zanforlin, Aurora Maccarone, Gerald S. Buller, and John Jeffers "Ghost displacement: imaging by measuring nothing", Proc. SPIE PC13148, Quantum Communications and Quantum Imaging XXII, PC1314801 (4 October 2024); https://doi.org/10.1117/12.3028042
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KEYWORDS
Quantum correlations
Quantum detection
Quantum amplitude
Quantum experiments
Quantum ghost imaging
Quantum light
Sensors
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