Summary form only given. Laser-based ultrasound detection uses photo-induced emf. The low responsivity of all conventional photo-emf sensors has been a serious challenge because it is more than an order of magnitude less sensitive than conventional photodetectors. The photo-emf sensor responsivity is improved via a novel surface electrode pattern: an asymmetric interdigitated contact (AIDC) geometry. Our design is shown with one pair and four pairs of interdigitated surface contacts. The single pair device is the conventional transverse-field photo-emf detector design, for above-bandgap operation.


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    Titel :

    Increased responsivity of photo-EMF detectors using asymmetric interdigitated contacts


    Beteiligte:
    Coy, J.A. (Autor:in) / Nolte, D.D. (Autor:in) / Dunning, G.J. (Autor:in) / Pepper, D.M. (Autor:in) / Chiao, M. (Autor:in) / Bacher, G.D. (Autor:in) / Klein, M.B. (Autor:in)


    Erscheinungsdatum :

    01.01.1999


    Format / Umfang :

    306720 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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