The mid-infrared channel of the EChO mission

J. M. Reess; G. Tinetti; J. P. Beaulieu; P. Bernardi; O. Boulade; C. Cara; V. Coudé de Foresto; P. Drossart; P. O. Lagage; G. Morinaud; N. Nguyen-Tuong; M. Ollivier; F. Pinsard; J. Tanrin; D. Zeganadin; R. Cledassou

doi:10.1117/12.2054919

28 August 2014 The mid-infrared channel of the EChO mission

J. M. Reess, G. Tinetti, J. P. Beaulieu, P. Bernardi, O. Boulade, C. Cara, V. Coudé de Foresto, P. Drossart, P. O. Lagage, G. Morinaud, N. Nguyen-Tuong, M. Ollivier, F. Pinsard, J. Tanrin, D. Zeganadin, R. Cledassou

Author Affiliations +

Proceedings Volume 9143, Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave; 91432F (2014) https://doi.org/10.1117/12.2054919
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

The Exoplanet Characterisation Observatory, EChO, is a dedicated space mission to investigate the physics and chemistry of Exoplanet atmospheres. Using the differential spectroscopy by transit method, it provides simultaneously a complete spectrum in a wide wavelength range between 0.4μm and 16μm of the atmosphere of exoplanets. The payload is subdivided into 6 channels. The mid-infrared channel covers the spectral range between 5μm and 11μm. In order to optimize the instrument response and the science objectives, the bandpass is split in two using an internal dichroic. We present the opto-mechanical concept of the MWIR channel and the detector development that have driven the thermal and mechanical designs of the channel. The estimated end-to-end performance is also presented.

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J. M. Reess, G. Tinetti, J. P. Beaulieu, P. Bernardi, O. Boulade, C. Cara, V. Coudé de Foresto, P. Drossart, P. O. Lagage, G. Morinaud, N. Nguyen-Tuong, M. Ollivier, F. Pinsard, J. Tanrin, D. Zeganadin, and R. Cledassou "The mid-infrared channel of the EChO mission", Proc. SPIE 9143, Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave, 91432F (28 August 2014); https://doi.org/10.1117/12.2054919

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