Claude Coatantiec
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View article: A fibre-based 2D-slit homogenizer concept for high-precision space-based spectrometer missions
A fibre-based 2D-slit homogenizer concept for high-precision space-based spectrometer missions Open
The measurement accuracy of recent and future space-based imaging spectrometers with a high spectral and spatial resolution suffer from the inhomogeneity of the radiances of the observed Earth scene. The Instrument Spectral Response Functi…
View article: Experimental validation of a 2D-slit homogenizer for space based imaging spectrometers
Experimental validation of a 2D-slit homogenizer for space based imaging spectrometers Open
The analysis of recent Earth observation spectrometer missions revealed the impact of spatially heterogeneous Earth radiance scenes on the spectral accuracy of the instruments. One of the most critical observations is the distortion of the…
View article: Space spectrograph design to calibration
Space spectrograph design to calibration Open
Recent societal demands in climate awareness call for rapid launch of space optical spectrographs, such as to be capable of putting state-of-the-art technology in short timeframe into orbit. As a consequence, it is of paramount importance …
View article: PHARAO space atomic clock: new developments on the laser source
PHARAO space atomic clock: new developments on the laser source Open
The PHARAO project purpose is to open the way for a new atomic clock generation in space, where laser cooling techniques and microgravity allow high frequency stability and accuracy. The French space agency, CNES is funding and managing th…
View article: Grating scattering BRDF and imaging performances: A test survey performed in the frame of the flex mission
Grating scattering BRDF and imaging performances: A test survey performed in the frame of the flex mission Open
Key components in optical spectrometers are the gratings. Their influence on the overall infield straylight of the spectrometer depends not only on the technology used for grating fabrication but also on the potential existence of ghost im…
View article: A new technological step for sic mirrors preparing OTOS
A new technological step for sic mirrors preparing OTOS Open
OTOS is a DGA and CNES technology program dedicated to the preparation of the next generation space telescopes.
View article: Design, manufacturing and alignment of a fluorescence imaging spectrometer based on refractive optics and a transmission grating
Design, manufacturing and alignment of a fluorescence imaging spectrometer based on refractive optics and a transmission grating Open
In the framework of the Fluorescence Explorer (FLEX) phase A/B1 study, an elegant breadboard (EBB) of an imaging spectrometer is designed, manufactured and aligned by AMOS, with Airbus Defence&Space; as the prime Contractor of the study. T…