Title of article :
Longwave infrared focal plane arrays from type-II strained layer superlattices
Author/Authors :
Sundaram، نويسنده , , Mani and Reisinger، نويسنده , , Axel and Dennis، نويسنده , , Richard and Patnaude، نويسنده , , Kelly and Burrows، نويسنده , , Douglas and Bundas، نويسنده , , Jason and Beech، نويسنده , , Kim and Faska، نويسنده , , Ross، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2011
Abstract :
We report high quantum efficiency low-noise longwave infrared focal plane arrays (FPAs) made from type-II InAs/GaSb strained layer superlattice (SLS) photodiodes. In 320 × 256 FPAs operating at 77 K, we measure cutoff wavelength ∼8.5 μm, dark current density ∼10−4 A/cm2, average conversion efficiency ∼50% (with 2 μm-thick absorber photodiode), and temporal noise equivalent difference in temperature (NEDT) <20 mK at F/4.
Keywords :
Strained layer superlattices , InAs/GaSb , Longwave infrared , Focal plane array , SLS
Journal title :
Infrared Physics & Technology
Journal title :
Infrared Physics & Technology
