Alexander Soibel

TL;DR: In this paper, the authors describe a long wavelength infrared detector where an InAs/GaSb superlattice absorber is surrounded by a pair of electron-blocking and hole-blocking unipolar barriers.

TL;DR: The type-II InAs/GaSb superlattices have several fundamental properties that make them suitable for infrared detection: (1) their band gaps can be made arbitrarily small by design, (2) they are more immune to band-to-band tunneling compared with bulk material, and (3) the judicious use of strain in type-I As/GaInSb strained layer super-lattice (SLS) can enhance its absorption strength to a level comparable with HgVdTe (MCT), and (4) type

TL;DR: In this paper, the authors analyzed and compared different aspects of InAs/InAsSb and type-II superlattices for infrared detector applications and argue that the former is the most effective when implemented for mid-wavelength infrared detectors.

TL;DR: In this article, the authors investigated the high temperature performance of mid-wavelength infrared InAsSb-AlASSb nBn detectors with cut-off wavelengths near 4.5 µm and showed that the quantum efficiency of these devices is 35% without antireflection coatings and does not change with temperature in the 77-325 µm temperature range.

TL;DR: In this paper, the authors demonstrate a type of transmissive metalens that focuses the incident light on the detector plane after propagating through the substrate, i.e., solid-immersion type of focusing.