NOMAD spectrometer on the ExoMars trace gas orbiter mission: part 1-design, manufacturing and testing of the infrared channels

作者：Neefs Eddy^*; Vandaele Ann Carine; Drummond Rachel; Thomas Ian R; Berkenbosch Sophie; Clairquin Roland; Delanoye Sofie; Ristic Bojan; Maes Jeroen; Bonnewijn Sabrina; Pieck Gerry; Equeter Eddy; Depiesse Cedric; Daerden Frank; Van Ran**eeck Emiel; Nevejans Dennis; Rodriguez Gomez Julio; Lopez Moreno Jose Juan; Sanz Rosario; Morales Rafael; Paolo Candini Gian; Carmen Pastor Morales M; Aparicio del Moral Beatriz; Jeronimo Zafra Jose Maria; Manuel Gomez Lopez Juan

来源：Applied Optics, 2015, 54(28): 8494-8520.

DOI：10.1364/AO.54.008494

NOMAD is a spectrometer suite on board ESA's ExoMars trace gas orbiter due for launch in January 2016. NOMAD consists of two infrared channels and one ultraviolet and visible channel allowing the instrument to perform observations quasi-constantly, by taking nadir measurements at dayside and nightside, and during solar occultations. In this paper, the design, manufacturing, and testing of the two infrared channels are described. We focus upon the optical working principle in these channels, where an echelle grating, used as a diffractive element, is combined with an acousto-optical tunable filter, used as a diffraction order sorter.

• 出版日期2015-10-1