We present an original method for the simulation of images degraded by atmospheric turbulence. The existing methods allow us to simulate only images that are temporally decorrelated from each other, in the isoplanatic case, or in weak anisoplanatism. Here, we propose a simulation for the case of strong anisoplanatism. Moreover, the temporal aspect has been studied in order to build up a sequenc...

Nous présentons les récents développements scientifiques et techniques liés aux sources lasers infrarouges en micro-cavités à base d’alliages germanium-étain (GeSn). Ces alliages sont des matériaux semi-conducteurs de la filière silicium compatibles avec procédés fabrication bas coût l’industrie micro-électronique. Un enjeux est d’obtenir un alignement direct structure bande électronique ces él...

Abstract With the maturation of near-infrared high-resolution spectroscopy, especially when used for precision radial velocity, data reduction has faced unprecedented challenges in terms how one goes from raw to calibrated, extracted, and corrected with required precisions thousandths a pixel. Here we present A PipelinE Reduce Observations ( apero ), specifically focused on Spectro Polarimètre ...

Quantitative reflectance spectroscopy offers an alternative to traditional analytical methods for the determination of the chemical composition of a sample. The objective of this study was to develop a set of spectroscopic calibrations to determine the chemical composition (nutrients, carbon, and fiber constituents, determined using standard wet lab methods) of dried conifer foliage samples (N ...