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Proceedings Paper

ALOHA @3,39 μm : Implementation of the up-conversion interferometer in the L band
Author(s): Ludovic Szemendera; Pascaline Darré; Ludovic Grossard; Laurent Delage; Harald Herrmann; Christine Silberhorn; François Reynaud
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Paper Abstract

In the aim of access the high angular resolution for mid infrared observations, our team propose to include non linear processes on each arm of an interferometer. This project called ALOHA is now adapted for the L band detection, specially at 3.39 μm. Our team has previously published the first contrast measured in laboratory with such an up-conversion interferometer. The fringe contrast we measured was closed to the theoretical maximum at 100%. In a second step, we investigated the stability of the instrument over several months. The residual drifts are mainly due to the non real-time photometry monitoring.

Paper Details

Date Published: 19 August 2016
PDF: 6 pages
Proc. SPIE 9907, Optical and Infrared Interferometry and Imaging V, 990732 (19 August 2016); doi: 10.1117/12.2232295
Show Author Affiliations
Ludovic Szemendera, XLIM Institut de Recherche, CNRS (France)
Pascaline Darré, XLIM Institut de Recherche, CNRS (France)
Ludovic Grossard, XLIM Institut de Recherche, CNRS (France)
Laurent Delage, XLIM Institut de Recherche, CNRS (France)
Harald Herrmann, Univ. Paderborn (Germany)
Christine Silberhorn, Univ. Paderborn (Germany)
François Reynaud, XLIM Institut de Recherche, CNRS (France)


Published in SPIE Proceedings Vol. 9907:
Optical and Infrared Interferometry and Imaging V
Fabien Malbet; Michelle J. Creech-Eakman; Peter G. Tuthill, Editor(s)

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