QUANTUM STRUCTURES FOR FAR-INFRARED DETECTION
A.G.U. PERERA
and S.G. MATSIK
Department of Physics and Astronomy,
Georgia State University,
Atlanta, GA.30303, USA
FIR photon detector developments starting from the
extrinsic detectors for LWIR to FIR wavelengths are presented. Several other
types of IR detectors, including the cutoff wavelength extension into the FIR
range for quantum well infrared photo detectors (QWIPs), are summarized.
Efforts in developing ρ-GaAs homojunction interfacial work function
internal photoemission (HIWIP) far-infrared detectors and the most reason
developments on GaAs/AlGaAs HEterojunction interfacial work function internal
photoemission (HEIWIP) far-infrared detectors are presented.