Proposed detector of infrared photons based on photon-assisted, resonant quantum-mechanical tunneling between adjacent energy wells in its semiconductor structure. Wavelength adjusted by changing applied voltage. Device contains alternating layers of different seminconductors which form double-quantum-well electron-energy structure. Tunable-quantum-well detectors made on single chip constitutes line imager. Many such devices stacked to form two-dimensional imaging device. Signal-processing circuitry integrated into chip at its lower end. Potential barriers and wells produced by alternating layers of different semiconductor materials. Steepness of slope proportional to applied electric field. Electric field and thicknesses and heights of barriers selected to favor photon-assisted, resonant quantum-mechanical tunneling at chosen photon frequency.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Tunable-Quantum-Well Infrared Detector


    Contributors:

    Published in:

    Publication date :

    1990-03-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




    Spectrum Tunable Quantum Dot-in-a-well Infrared Detector Arrays for Thermal Imaging

    Andrews, J.R. / Restaino, S.R. / Teare, S.W. et al. | British Library Conference Proceedings | 2008


    Multiple-Quantum-Well Intersubband Infrared Detector

    Borenstain, Shmuel I. | NTRS | 1991


    Tunable far infrared detection using quantum rings-in-well intersubband photodetectors

    Samadzadeh, R. / Zavvari, M. / Hosseini, R. | British Library Online Contents | 2015


    Quantum Well Infrared Detector Research at the Air Force Phillips Laboratory

    Singh, A. / Electrochemical Society; Electronics Division / Electrochemical Society; Dielectric Science and Technology Division | British Library Conference Proceedings | 1997


    Novel photovoltaic and bicolor GaAs/AlGaAs quantum well infrared detector [3182-07]

    Chen, Z. / Yuan, Z. / Ma, J. et al. | British Library Conference Proceedings | 1997