Translator Disclaimer
4 June 2015 Type-II superlattice detector for long-wave infrared imaging
Author Affiliations +
When incorporated into the active layer of a "XBp" detector structure, Type II InAs/GaSb superlattices (T2SLs) offer a high quantum efficiency (QE) and a low diffusion limited dark current, close to MCT Rule 07. Using a simulation tool that was developed to predict the QE as a function of the T2SL period dimensions and active layer stack thickness, we have designed and fabricated a new focal plane array (FPA) T2SL XBp detector. The detector goes by the name of "Pelican-D LW", and has a format of 640 ×512 pixels with a pitch of 15 μm. The FPA has a QE of 50% (one pass), a cut-off of ~9.5 μm, and operates at 77K with a high operability, background limited performance and good stability. It uses a new digital read-out integrated circuit, and the integrated detector cooler assembly (IDCA) closely follows the configuration of SCD’s Pelican-D MWIR detector.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
P. C. Klipstein, E. Avnon, Y. Benny, A. Fraenkel, A. Glozman, E. Hojman, E. Ilan, E. Kahanov, O. Klin, L. Langof, Y. Livneh, I. Lukomsky, M. Nitzani, L. Shkedy, I. Shtrichman, N. Snapi, R. Talmor, A. Tuito, S. Vaserman, and E. Weiss "Type-II superlattice detector for long-wave infrared imaging", Proc. SPIE 9451, Infrared Technology and Applications XLI, 94510K (4 June 2015);


Back to Top