Array with 18 m cutoff fabricated, and bump-bonded by Rockwell for demonstration. 256 x 256 long-wavelength SiGe focal plane arrays have been fabricated, and shown to respond out to 15 m. Work continued on optimization of AlInAsSb for detector applications. Doping problems in the wide bandgap Al-bearing material were solved. In progress, pending progress on milestone 1.
Work continues on optimization for long wavelengths.
Upgraded MBE will help. Studies have been redirected. The effect of doping asymmetries on the PV response is now under investigation. Task 1 comments above. However, further measurements and analysis indicatethis is not a useful effect for detection.