Optoelectronic integration of quantum well intersubband photodetectors for two-dimensional array fabrication

摘要

Abstract: We propose and demonstrate the integration of a quantum well intersubband photodetector (QWIP) and a light emitting diode (LED) for making large two-dimensional focal plane arrays for thermal imaging applications. We combine the newly developed long wavelength infrared QWIP technology with the well-established near infrared LED technology both based on GaAs and related epitaxially grown alloys, such as AlGaAs and InGaAs. !8