Terahertz linear and nonlinear dynamics in confined magnetoexcitons

J. Kono, M. Y. Su, K. B. Nordstrom, J. Černe, M. S. Sherwin, S. J. Allen, T. Inoshita, T. Noda, H. Sakaki, G. E.W. Bauer, M. Sundaram, A. C. Gossard

Research output: Contribution to journalArticlepeer-review


We have probed the linear and nonlinear terahertz (THz) properties of magnetoexcitons in GaAs/AlGaAs quantum wells. By monitoring photoluminescence from the quantum wells that were simultaneously driven by THz fields, we have directly observed internal transitions of excitons. In the nonlinear, high-THz-excitation regime, we observed mixing of optical and THz radiation, which resulted in THz optical sidebands. By monitoring the sidebands, we observed one- and two-THz-photon nonlinear internal transitions in excitons. These results provide new and accurate information on the energy structure and internal dynamics of excitons.

Original languageEnglish
Pages (from-to)567-570
Number of pages4
JournalPhysica Status Solidi (A) Applied Research
Issue number1
Publication statusPublished - 1997


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