Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
58 (1991), S. 1297-1298
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
We report on the observation of photon-assisted resonant tunneling in a multiple quantum well structure composed of doped quantum wells separated by variably spaced superlattice energy filters. Electrons confined in the quantum wells are excited to the second quantized state by intersubband absorption of incident infrared radiation and are subsequently emitted through the filters under appropriate bias conditions. This is manifested by a distinct peak, with an associated negative differential photoconductance, in the photocurrent versus bias voltage characteristic at low temperatures.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.104341
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