Publication # 137

D. S. Chemla, S. Schmitt-Rink, W. H. Knox, D. A. B. Miller, K. W. Goossen, and G. Hasnain "Ultrafast Nonlinear Optical Effects in Biased Semiconductor Quantum Wells" phys. stat. sol. (b) 159, 11 (1990).

The development of electronic and photonic devices operating in the many-THz regime will require the invention of novel structure concepts and will implement physical processes different from those presently used in optoelectronics. An analysis is reviewed of the physical mechanisms that can be implemented to generate, propagate and detect femtosecond electrical signals in properly designed semiconductor quantum well structures. Also discussed are recent experimental investigations of these effects as well as the fundamental limitations caused by two photon absorption

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