ALOHA—Astronomical Light Optical Hybrid Analysis

Autor: Romain Baudoin, Ludovic Szemendera, Pascaline Darré, Lucien Lehmann, Damien Ceus, Sophie Brustlein, Ludovic Grossard, François Reynaud, Jean-Thomas Gomes, Laurent Delage

Publikováno v: Experimental Astronomy. 46:447-456

This paper gives an overview of the Astronomical Light Optical Hybrid Analysis (ALOHA) project dedicated to investigate a new method for high resolution imaging in mid infrared astronomy. This proposal aims to use a non-linear frequency conversion pr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::200e67eb71e65c64fd3abdef884daf13
https://doi.org/10.1007/s10686-018-9585-2

In-lab ALOHA mid-infrared up-conversion interferometer with high fringe contrast @λ = 3.39 μm

Autor: Christine Silberhorn, Laurent Delage, Ludovic Szemendera, H. Herrmann, Pascaline Darré, Romain Baudoin, Ludovic Grossard, François Reynaud

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2016, 457 (3), pp.3115-3118. ⟨10.1093/mnras/stw196⟩

International audience; We report on the implementation of a mid-infrared (MIR) interferometer prototype for furthermore application in the framework of high-resolution imaging in astronomy. This paper demonstrates the possibility to extend to the L

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea0ccbc413696b14abbfbf6e31e8c2be
https://hal.archives-ouvertes.fr/hal-01321931

Proposal for the Implementation of the ALOHA Up-Conversion Interferometer on the CHARA Telescope Array

Autor: Laurent Delage, V. Coudé du Foresto, J. Sturmann, N. Scott, Jean-Thomas Gomes, Romain Baudoin, Ludovic Grossard, François Reynaud, T. ten Brummelaar

Publikováno v: Journal of Astronomical Instrumentation
Journal of Astronomical Instrumentation, World Scientific Publishing, 2014, 3 (3-4), pp.1450008. ⟨10.1142/S2251171714500081⟩
Journal of Astronomical Instrumentation, 2014, 3 (3-4), pp.1450008. ⟨10.1142/S2251171714500081⟩

International audience; In this paper, we present a new concept of instrument for high resolution imaging in astronomy, involvingthe sum frequency generation in non-linear waveguides. The aim is to convert the infrared radiationemitted by an astronom

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d9967b8a66b94fe2164a78a109daefc
https://doi.org/10.1142/s2251171714500081

Sum frequency generation process for a new astronomical instrument

Autor: François Reynaud, Romain Baudoin, Judit Sturmann, Ludovic Grossard, Laurent Delage, Jean-Thomas Gomes, T. A. Ten Brummelar, N. J. Scott

Publikováno v: SPIE Proceedings.

We propose an exotic use of sum frequency generation process (SFG) to develop a new kind of high resolution interferometer for astronomical imaging. SFG is well known to be intrinsically a noiseless non linear process of upconversion which permits a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::10befbf4c3c4515217efa1a29f55bbd5
https://doi.org/10.1117/12.2039083

Co-phasing of a diluted aperture synthesis instrument for direct imagingII. Experimental demonstration in the photon-counting regime with a temporal hypertelescope

Autor: Romain Baudoin, Laurent Delage, Laurent Bouyeron, François Reynaud, Jean-Thomas Gomes, Ludovic Grossard

Publikováno v: Astronomy and Astrophysics Review
Astronomy and Astrophysics Review, Springer Verlag, 2014, 567, pp.8. ⟨10.1051/0004-6361/201321486⟩

International audience; Context. Amongst the new techniques currently developed for high-resolution and high-dynamics imaging, the hypertelescope architecture is very promising for direct imaging of objects such as exoplanets. The performance of this

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::089999db9c7b314bc379ce8bf56b04bf
https://hal.archives-ouvertes.fr/hal-01321212