COMBINED PHOTODIODE AND HIGH-TC TRANSITION EDGE BOLOMETER FUNCTION ONZIRCONIA BUFFERED SILICON MEMBRANES

We report on a novel photoreceiver on silicon membranes, comprising bo th, an efficient photodiode or quantum detector and a transition edge bolometer on the same substrate material, The photodiode action of the device originates from the silicon substrate and delivers a fast opti cal response, with a limited sensitivity range at wavelength <1.1 mu m . The bolometer response, in contrast, is broadband, but rather slow w ith response times in the ms regime. The combination of both detectors thus represents a new optical receiver concept, and should be useful for a broad range of optical applications.