Accession Number : ADA305160
Title : Double Superlattice GaAs IR Transducer.
Descriptive Note : Final rept. 1 Nov 90-31 Dec 93,
Corporate Author : PRINCETON UNIV NJ DEPT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
Personal Author(s) : Tsui, D. C.
PDF Url : ADA305160
Report Date : 30 AUG 1995
Pagination or Media Count : 6
Abstract : A superlattice structure can be incorporated into a quantum-well infrared detector as an electron bandpass filter to block electrons with energies higher or lower than the miniband energy. Electrons with energies inside the miniband can relax their energies to the lower edge of the miniband as they pass through the superlattice. Therefore, the superlattice not only filter the electron energy but also keeps the filtered electrons to a minimum energy. We have realized these expected advantages, greatly improved the detectivity of the device, and demonstrated the operation of a background limited IR transistor for T up to 90K. The research was carried out in these stages as described below. jg p3
Descriptors : *GALLIUM ARSENIDES, *SUPERLATTICES, *INFRARED DETECTORS, *TRANSDUCERS, CRYSTAL STRUCTURE, EDGES, CRYSTAL LATTICES, QUANTUM WELLS, ELECTRONS, ELECTRON ENERGY, FILTERS, BANDPASS FILTERS, TRANSISTORS.
Subject Categories : Electrical and Electronic Equipment
Atomic and Molecular Physics and Spectroscopy
Distribution Statement : APPROVED FOR PUBLIC RELEASE