Compact high-resolution spaceborne echelle grating spectrometer with acousto-optical tunable filter based order sorting for the infrared domain from 2.2 to 4.3 microm.
A new compact spaceborne high-resolution spectrometer developed for the European Space Agency's Venus Express spacecraft is described. It operates in the IR wavelength range of 2.2 to 4.3 microm and measures absorption spectra of minor constituents in the Venusian atmosphere. It uses a novel echelle grating with a groove density of 4 lines/mm in a Littrow configuration in combination with an IR acousto-optic tunable filter for order sorting and an actively cooled HgCdTe focal plane array of 256 by 320 pixels. It is designed to obtain an instrument line profile of 0.2 cm(-1). First results on optical and spectral properties are reported.
Nevejans
Dennis
D
Belgian Institute for Space Aeronomy, Belgium. dennis.nevejans@bira-iasb.be
Neefs
Eddy
E
Van Ransbeeck
Emiel
E
Berkenbosch
Sophie
S
Clairquin
Roland
R
De Vos
Lieve
L
Moelans
Wouter
W
Glorieux
Stijn
S
Baeke
Ann
A
Korablev
Oleg
O
Vinogradov
Imant
I
Kalinnikov
Yuri
Y
Bach
Benny
B
Dubois
Jean-Pierre
JP
Villard
Eric
E