An excitonic blue-shift is observed when a GaAs/AlGaAs superlattice is irradiated with a strong THz field. This observation is compared with a microscopic calculation, and is consistent with the onset of dynamical localization.
© 2004 Optical Society of America
(190.0190) Nonlinear optics : Nonlinear optics
(190.4720) Nonlinear optics : Optical nonlinearities of condensed matter
(300.0300) Spectroscopy : Spectroscopy
(300.6470) Spectroscopy : Spectroscopy, semiconductors
M. Koch, V. Ciulin, S. G. Carter, M. S. Sherwin, T. Meier, S. W. Koch, J. Zide, D. Driscoll, and A. C. Gossard, "Onset of dynamical localization in a semiconductor superlattice," in Conference on Lasers and Electro-Optics/International Quantum Electronics Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2004), paper IMO3.
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