HgCdTe , Infrared detectors , Sofradir , space , VLWIR

“LWIR and VLWIR MCT technologies and detectors development at Sofradir for space applications"

 

SPIE Baltimore 2012

 

 

 

BRIEF BIOGRAPHY

Cédric LEROY, graduated in Engineer from « Ecole Nationale Supérieure d'Ingénieurs en Mécanique et Energétique » of Valenciennes (France). In 2007, he joined Sofradir as a development engineer in charge of custom Dewar design, especially involved in space programs. In 2010 he was promoted to space program manager in charge of pre-contract project analysis, project management (technical, costs and schedule aspects) and customer interface.

 
ABSTRACT

For Sofradir, space applications have become a significant activity. The panel of space applications in which Sofradir is involved is wide and covers a large spectrum of wavelengths. The last developments for space applications have opened new requirements for LWIR and VLWIR infrared detectors with cut-off wavelength up to more than 15 µm. In this paper, we present a review of the MCT technology optimization for LWIR and VLWIR applications. Then, a presentation of the different programs using these developments is made with a presentation of the associated results as they relate to performances and qualifications for space use.

 

ABSTRACT

For Sofradir, space applications have become a significant activity. As a consequence, Sofradir relies now on 20 years of experience in development and production of MCT infrared detectors of 2nd and 3rd generation for space applications. The panel of space applications in which Sofradir is involved is wide (earth observation, science, meteorology, civilian and military satellites,….) and covers a large spectrum ranging from visible up to VLWIR. The last developments for space applications have opened new requirements for LWIR and VLWIR infrared detectors with cut-off wavelength up to more than 15 µm. These requirements call for technology optimization in order to find the best trade-off between detector performances and operational constraints such as the highest possible operating temperature. In this paper, we present a review of the MCT technology optimization for LWIR and VLWIR applications. Then, a presentation of the different programs using these developments is made with a presentation of the associated results as they relate to performances and qualifications for space use.

 

 

AUTHORS :          

Cédric LEROY, P. PIDANCIER, P. CHORIER
SOFRADIR, 43-47 rue Camille Pelletan,
92290 CHÂTENAY-MALABRY, France
Phone: 33.1.41.13.45.30       Fax : 33.1.46.61.58.84
E-Mail: cedric.leroy@sofradir.com
Gérard DESTEFANIS
CEA LETI