Electrons in an electrically biased superlattice execute Bloch oscillations (BO) at THz frequencies.1,2 The BOs can be tuned into resonance with other THz modes, such as plasmons and coherent longitudinal optical (LO) phonons. The coupling of BOs to such modes strongly affects the dephasing dynamics and thus the associated THz emission.

© 2001 Optical Society of America

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