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2024
Conference Paper
Title

Remote Quantum Ghost Imaging

Abstract
Quantum Ghost Imaging (QGI) is a scheme using entangled pairs of photons (signaland idler) in order to perform imaging with both single photons and with only a single-element detectorin the spectrum of interest. It utilises the temporal coincidence of the photons to identify associated pairs, while their spatial correlation allows to obtain image information from of the idler photon from the measurement of the signal photon.It is especially useful when using non-degenerate photon pairs, allowing to keep the signal photon in the silicon detection window, while the interacting wavelength can be freely chosen.However, current schemes are limited, as they rely on time-gating and heralding. Recent advances in single photon avalanche diodes (SPADs) allow the design of new single photon cameras, which can be outfitted with dedicated in-pixel timing circuitry. This allows to register single photons in both time and space. These detectors allowed us to design a new scheme for QGI, in which the coincidence is evaluated after the measurement. It also allows us to perform depth-resolved 3D imaging based on the time-of-flight of photons,first results of which are presented here.
Author(s)
Pitsch, Carsten  
Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung IOSB  
Walter, Dominik  
Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung IOSB  
Bürsing, Helge  
Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung IOSB  
Eichhorn, Marc  
Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung IOSB  
Mainwork
Quantum Sensing, Imaging, and Precision Metrology II  
Conference
Conference "Quantum Sensing, Imaging, and Precision Metrology" 2024  
Conference "Quantum West" 2024  
DOI
10.1117/12.3010398
Language
English
Fraunhofer-Institut für Optronik, Systemtechnik und Bildauswertung IOSB  
Keyword(s)
  • 3D imaging

  • Ghost Imaging

  • SPAD

  • SPDC

  • TCSPC

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