Measurement of the second-order g(2) correlation function of visible light from Vega in photon counting mode

Michele Fiori; Cesare Barbieri; Luca Zampieri; Giampiero Naletto; Aleksandr Burtovoi

doi:10.1117/12.2593083

1 August 2021 Measurement of the second-order g⁽²⁾ correlation function of visible light from Vega in photon counting mode

Michele Fiori, Cesare Barbieri, Luca Zampieri, Giampiero Naletto, Aleksandr Burtovoi

Author Affiliations +

Proceedings Volume 11835, Quantum Communications and Quantum Imaging XIX; 118350D (2021) https://doi.org/10.1117/12.2593083
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Abstract

This paper illustrates the results of an experiment performed in the frame of the Asiago Observatory Stellar Intensity Interferometry program, aimed to exploit the quantum properties of the photon stream emitted from celestial objects. Data are acquired over two telescopes separated by approximately 4 km in photon-counting mode and analyzed in post-processing. The temporal and spatial correlation function g⁽²⁾ on the bright star Vega has been successfully measured at zero baseline and at a ~2 km baseline. The result is fully consistent with that expected for a source with the angular diameter of Vega (approximately 3.3 mas).

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Citation Download Citation

Michele Fiori, Cesare Barbieri, Luca Zampieri, Giampiero Naletto, and Aleksandr Burtovoi "Measurement of the second-order g⁽²⁾ correlation function of visible light from Vega in photon counting mode", Proc. SPIE 11835, Quantum Communications and Quantum Imaging XIX, 118350D (1 August 2021); https://doi.org/10.1117/12.2593083

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