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Optical heterodyne detection and microwave rectification up to 26 GHz using quantum well infrared photodetectors

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6 Author(s)
Liu, H.C. ; Inst. for Microstructural Sci., Nat. Res. Council of Canada, Ottawa, Ont., Canada ; Jenkins, G.E. ; Brown, E.R. ; McIntosh, K.A.
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We have demonstrated heterodyne detection up to an intermediate frequency of 26.5 GHz using quantum well infrared photodetectors. A CO/sub 2/ laser and a lead-salt tunable diode laser were used as the infrared sources. Heterodyne detection experiments measure the high frequency behavior of photoexcited electrons and their transport properties. We have also carried out microwave rectification experiments which measure the high frequency behavior associated with the dark-current electron-transport processes.

Published in:
Electron Device Letters, IEEE  (Volume:16 ,  Issue: 6 )

Date of Publication: June 1995

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