title: Demonstration of type-II superlattice MWIR minority carrier unipolar imager for high operation temperature application.
abstract: An InAs/GaSb type-II superlattice-based mid-wavelength infrared (MWIR) 320×256 unipolar focal plane array (FPA) using pMp architecture exhibited excellent infrared image from 81 to 150 K and ∼98% operability, which illustrated the possibility for high operation temperature application. At 150 K and -50  mV operation bias, the 27 μm pixels exhibited dark current density to be 1.2×10(-5)  A/cm(2), with 50% cutoff wavelength of 4.9 μm, quantum efficiency of 67% at peak responsivity (4.6 μm), and specific detectivity of 1.2×10(12) Jones. At 90 K and below, the 27 μm pixels exhibited system limited dark current density, which is below 1×10(-9)  A/cm(2), and specific detectivity of 1.5×10(14) Jones. From 81 to 100 K, the FPA showed ∼11  mK NEDT by using F/2.3 optics and a 9.69 ms integration time.
authors.forename: Guanxi
authors.initials: G
authors.lastname: Chen
authors.forename: Abbas
authors.initials: A
authors.lastname: Haddadi
authors.forename: Anh-Minh
authors.initials: AM
authors.lastname: Hoang
authors.forename: Romain
authors.initials: R
authors.lastname: Chevallier
authors.forename: Manijeh
authors.initials: M
authors.lastname: Razeghi
mesh_terms: D000965:Antimony; D001152:Arsenicals; D006801:Humans; D007204:Indium; D007259:Infrared Rays; D061848:Optical Imaging / Q000379:methods*; D055620:Optical Phenomena; D013696:Temperature; D014680:Veins
chemical_list: D001152:Arsenicals; D007204:Indium; D000965:Antimony; C076773:indium arsenide