Abstract
The temporal responses of two types of excitonic optical non-linearity in multiple quantum well structures are discussed. Picosecond transient grating measurements provide coefficients of nonlinear refraction associated with exciton saturation in room temperature GaAs/AlGaAs structures as well as information on carrier heating and carrier transport, both intra-well and cross-well. The wavelength shift of the exciton feature when carriers are optically generated in an electrically biased GaAs/AlGaAs multiple quantum well structure has allowed an assessment of the nature of the cross-well photocurrent using the picosecond excite-probe method.4
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© 1989 Plenum Press, New York
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Miller, A., Manning, R.J., Milsom, P.K. (1989). Transient Optical Nonlinearities in Multiple Quantum Well Structures. In: Haug, H., Bányai, L. (eds) Optical Switching in Low-Dimensional Systems. NATO ASI Series, vol 194. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-7278-3_27
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DOI: https://doi.org/10.1007/978-1-4684-7278-3_27
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