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2006 Joint 31st International Conference on Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics
We have designed and tested basic operation of a GaAs/AlGaAs quantum well photodetector in THz range of spectrum (3 THz, 100 [rm). Responsivity of a few mA/W was measured, however achieving of the background-limited performance was not feasible because of high level of the dark current. Suitability of the device for practical applications will depend on further improvements of the design. We believe that better performance can be attained by optimizing the doping levels in the quantum wells. Todoi:10.1109/icimw.2006.368720 fatcat:npaiqxxlpvclxgygorvjahkhgi