Room-temperature mid-infrared two-photon photodetector
Room-temperature mid-infrared two-photon photodetector
Schneider, H.; Liu, H. C.; Winnerl, S.; Drachenko, O.; Helm, M.; Faist, J.
We report on a two-photon detector based on resonantly enhanced nonlinear absorption between subbands in InGaAs/InAlAs quantum wells and demonstrate its use as a quadratic autocorrelator for mid-infrared pulses. Modified device design allows for device operation at room temperature, which is crucial for applications in practical systems.
Keywords: Quantum well intersubband photodetector; two-photon transition; quadratic autocorrelation; InGaAs/AlGaAs
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Applied Physics Letters 93(2008), 101114
DOI: 10.1063/1.2977864
Cited 13 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-11636