Infrared focal plane array with a built-in stationary Fourier-transform spectrometer: basic concepts.
A novel configuration of stationary Fourier transform infrared (FTIR) spectrometer is presented. Contrary to classic configurations, the interferometer is directly integrated in the focal plane array (FPA) during its process of fabrication. A first, to the best of our knowledge, demonstration of the spectrometric function has been achieved departing from a well-known structure of an HgCdTe photodetector. We show that the obtained FTIR-FPA can be described by intrinsic parameters such as an optical path difference and a so-called spectrometric efficiency. First experimental results are presented.
Rommeluère
Sylvain
S
Office National d'Etudes et de Recherches Aérospatiales, Palaiseau F-91761, France.
Guérineau
Nicolas
N
Haidar
Riad
R
Deschamps
Joël
J
De Borniol
Eric
E
Million
Alain
A
Chamonal
Jean-Paul
JP
Destefanis
Gérard
G