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Stellar Intensity Interferometry Laboratory experiments @ Lund Observatory

Stellar Intensity Interferometry Laboratory experiments @ Lund Observatory. An artificial star is observed by a pair of movable telescopes. Detected photon streams are cross correlated in real time. Stellar Intensity Interferometry Laboratory experiments @ Lund Observatory.

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Stellar Intensity Interferometry Laboratory experiments @ Lund Observatory

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  1. Stellar Intensity Interferometry Laboratory experiments @ Lund Observatory An artificial star is observed by a pair of movable telescopes. Detected photon streams are cross correlated in real time.

  2. Stellar Intensity Interferometry Laboratory experiments @ Lund Observatory An artificial star is observed by a pair of movable telescopes across a 20 m long optics lab.

  3. Real-time digital photon correlators Permit to verify various observational modes, both in the lab, and at telescopes

  4. DIGITAL PHOTON CORRELATORS @ Lund Observatory 700 MHz clock rate (1.4 ns time resolution) 200 MHz maximum photon count rates per channel (pulse-pair resolution 5 ns) 8 input channels for photon pulses at TTL voltages Custom-made by Correlator.com for applications in intensity interferometry

  5. Analyzing photon-counting detectors Afterpulsing, afterglow and other signatures could mimic intensity correlations Single-photon-counting avalanche photodiode detectors being evaluated @ Lund Observatory for digital intensity interferometry (made by: ID Quantique; Micro Photon Devices; PerkinElmer; SensL)

  6. INSTRUMENTS @ EXTREMELY LARGE TELESCOPES • ESO Instrument Studies for Extremely Large Telescopes (2005) • HIGHESTTIMERESOLUTION, REACHINGQUANTUMOPTICS D.Dravins1, C.Barbieri2, V.DaDeppo3, D.Faria1, S.Fornasier2, R.A.E.Fosbury4, L.Lindegren1, G.Naletto3, R.Nilsson1, T.Occhipinti3, F.Tamburini2, H.Uthas1, L.Zampieri5 (1) Lund Observatory, (2) Dept. of Astronomy, Univ. of Padova (3) Dept. of Information Engineering, Univ. of Padova (4) ST-ECF, ESO Garching, (5) Astronomical Observatory of Padova PROGRESS TOWARDS INTENSITY INTERFEROMETRY @ EXTREMELY LARGE TELESCOPES: G.Naletto, C.Barbieri, E.Verroi, I.Capraro,C.Facchinetti, S.Gradari, T.Occhipinti, P.Zoccarato, V.DaDeppo: Upgrade of Iqueye: A novel photon-counting photometer for the ESO new technologytelescope SPIE San Diego 2010: Ground-based and Airborne Instrumentation for Astronomy III [7735-148]

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