Time-resolved mid-infrared-pump, optical-probe differential transmission spectroscopy directly reveals electron dynamics in n-doped quantum dots infrared detector structure. Capturing and intradot relaxation time were measured. Nanosecond-scale dynamics in the n=1 state was also observed.
© 2006 Optical Society of America
(040.0040) Detectors : Detectors
(040.3060) Detectors : Infrared
(320.0320) Ultrafast optics : Ultrafast optics
(320.7130) Ultrafast optics : Ultrafast processes in condensed matter, including semiconductors
Z. Wu, H. Choi, T. Norris, S. Chakrabarti, X. Su, and P. Bhattacharya, "Electron Dynamics in n-doped In0.4Ga0.6As/GaAs Quantum Dot Infrared Detector Structures," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2006), paper QTuK3.
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