Heterodyne detection of weak THz signals can be obtained with ultrathin superconducting microbridge bolometers where frequency mixing is achieved by rapid relaxation of hot electrons in resistive hot spots. These devices do not suffer from the superconducting band gap limit of conventional SIS mixers. Phonon cooled HEBs from NbN allow mixing with IF bandwidths up to several GHz. We discuss NbN thin film optimization and present characterization methods which allow to investigate the phonon cooling path.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Development of phonon cooled hot-electron-bolometers (HEB) for applications in THz radioastronomy


    Beteiligte:
    Scherer, T.A. (Autor:in) / Frommberger, M. (Autor:in) / Schicke, M. (Autor:in) / Schuster, K. (Autor:in)


    Erscheinungsdatum :

    01.01.2004


    Format / Umfang :

    162512 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Radioastronomy from space

    Stone, R. G. | NTRS | 1970


    Possible transition-edge operation of diffusion-cooled hot-electron bolometers

    Skalare, A. / McGrath, W. R. / Bumble, B. et al. | NTRS | 2003


    Diffusion-cooled tantalum bolometers for heterodyne mixers

    Skalare, A. / McGrath, W. R. / Bumble, B. et al. | NTRS | 2002