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High-resolution spectroscopy of diffraction-limited sources: laboratory tests of an innovative near-IR demonstrator

Carlotti, Alexis and Mouillet, David and Bidot, Alexis and Bourdarot, Guillaume and Correia, Jean-Jacques and Jocou, Laurent and Delboulbé, Alain and Le Coarer, Etienne P. and Doyon, René and Artigau, Étienne and Vallée, Philippe and Roux, Alain and Feautrier, Philippe and Rabou, Patrick and Forveille, Thierry and Bonfils, Xavier and Lo-Cascio, Guillaume and Parthasarathy, Ambarish and Mawet, Dimitri and Vasisht, Gautam and Vigan, Arthur and Otten, Gilles (2020) High-resolution spectroscopy of diffraction-limited sources: laboratory tests of an innovative near-IR demonstrator. In: Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV. Proceedings of SPIE. Vol.11451. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 114512B. ISBN 9781510636897. https://resolver.caltech.edu/CaltechAUTHORS:20201216-152239703

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Abstract

Current high-resolution spectrometers have been designed for seeing-limited sources. Designing a spectrometer for diffraction-limited sources makes it possible to significantly improves its compacity and cost, but it also opens up new concepts, including better efficiency, and adaptability to various spectral domains, and up to very high resolution (several 10⁵). A novel, near-IR, R~80000 spectrometer has been developed at IPAG to characterize two sources at once in the H or K bands. Its design is based on a virtually imaged phased array instead of an échelle grating, which allows the spectrometer to fit inside a 0.2 m³ cryostat, and results in a gain in throughput with respect to usual échelle spectrographs. One specific science case that can benefit from this new type of design is the characterization of exoplanets' atmosphere. This paper presents the results of its test in the laboratory, as well as the preparation for an on-sky demonstration tentatively scheduled for summer 2020.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.2560666DOIPresentation
ORCID:
AuthorORCID
Carlotti, Alexis0000-0002-5859-0141
Bourdarot, Guillaume0000-0002-6777-6386
Jocou, Laurent0000-0001-9376-1818
Le Coarer, Etienne P.0000-0001-6571-5494
Doyon, René0000-0001-5485-4675
Artigau, Étienne0000-0003-3506-5667
Forveille, Thierry0000-0003-0536-4607
Bonfils, Xavier0000-0001-9003-8894
Mawet, Dimitri0000-0002-8895-4735
Vasisht, Gautam0000-0002-1871-6264
Vigan, Arthur0000-0002-5902-7828
Otten, Gilles0000-0002-6717-1977
Additional Information:© 2020 SPIE.
Group:Astronomy Department
Series Name:Proceedings of SPIE
Record Number:CaltechAUTHORS:20201216-152239703
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20201216-152239703
Official Citation:Alexis Carlotti, David Mouillet, Alexis Bidot, Guillaume Bourdarot, Jean-Jacques Correia, Laurent Jocou, Alain Delboulbé, Etienne P. Le Coarer, René Doyon, Étienne Artigau, Philippe Vallée, Alain Roux, Philippe Feautrier, Patrick Rabou, Thierry Forveille, Xavier Bonfils, Guillaume Lo-Cascio, Ambarish Parthasarathy, Dimitri Mawet, Gautam Vasisht, Arthur Vigan, and Gilles Otten "High-resolution spectroscopy of diffraction-limited sources: laboratory tests of an innovative near-IR demonstrator", Proc. SPIE 11451, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV, 114512B (13 December 2020); https://doi.org/10.1117/12.2560666
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:107135
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:17 Dec 2020 20:17
Last Modified:17 Dec 2020 20:17

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