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Your search keyword '"Krieg, J.-M."' showing total 1 results
Start Over Author "Krieg, J.-M." Publisher american institute of physics
1 results on '"Krieg, J.-M."'

1. Gain bandwidth of NbN hot-electron bolometer terahertz mixers on 1.5 μm Si3N4/SiO2 membranes.

Author

Cherednichenko, S., Drakinskiy, V., Baubert, J., Krieg, J.-M., Voronov, B., Gol’tsman, G., and Desmaris, V.

Subjects
OPTICAL detectors, BOLOMETERS, BANDWIDTHS, NIOBIUM alloys, SILICON oxide films, SILICON nitride
Abstract

The gain bandwidth of NbN hot-electron bolometer terahertz mixers on electrically thin Si3N4/SiO2 membranes was experimentally investigated and compared with that of HEB mixers on bulk substrates. A gain bandwidth of 3.5 GHz is achieved on bulk silicon, whereas the gain bandwidth is reduced down to 0.6–0.9 GHz for mixers on 1.5 μm Si3N4/SiO2 membranes. We show that application of a MgO buffer layer on the membrane extends the gain bandwidth to 3 GHz. The experimental data were analyzed using the film-substrate acoustic mismatch approach. [ABSTRACT FROM AUTHOR]

Published
2007
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