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Proceedings Paper

A 3.9 km baseline intensity interferometry photon counting experiment
Author(s): Giampiero Naletto; Luca Zampieri; Cesare Barbieri; Mauro Barbieri; Enrico Verroi; Gabriele Umbriaco; Paolo Favazza; Luigi Lessio; Giancarlo Farisato
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Paper Abstract

In the last years we have operated two very similar ultrafast photon counting photometers (Iqueye and Aqueye+) on different telescopes. The absolute time accuracy in time tagging the detected photon with these instruments is of the order of 500 ps for hours of observation, allowing us to obtain, for example, the most accurate ever light curve in visible light of the optical pulsars. Recently we adapted the two photometers for working together on two telescopes at Asiago (Italy), for realizing an Hanbury-Brown and Twiss Intensity Interferometry like experiment with two 3.9 km distant telescopes. In this paper we report about the status of the activity and on the very preliminary results of our first attempt to measure the photon intensity correlation.

Paper Details

Date Published: 13 September 2016
PDF: 16 pages
Proc. SPIE 9980, Quantum Communications and Quantum Imaging XIV, 99800G (13 September 2016); doi: 10.1117/12.2236664
Show Author Affiliations
Giampiero Naletto, Univ. degli Studi di Padova (Italy)
Consiglio Nazionale delle Ricerche (Italy)
Luca Zampieri, INAF-Astronomical Observatory of Padova (Italy)
Cesare Barbieri, INAF-Astronomical Observatory of Padova (Italy)
Univ. of Padova (Italy)
Mauro Barbieri, Univ. of Acatama (Chile)
Enrico Verroi, Univ. of Padova (Italy)
Gabriele Umbriaco, Univ. of Padova (Italy)
Paolo Favazza, Univ. of Padova (Italy)
Luigi Lessio, INAF-Astronomical Observatory of Padova (Italy)
Giancarlo Farisato, INAF-Astronomical Observatory of Padova (Italy)

Published in SPIE Proceedings Vol. 9980:
Quantum Communications and Quantum Imaging XIV
Ronald E. Meyers; Yanhua Shih; Keith S. Deacon, Editor(s)

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