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Coherent Optical Interactions in Semiconductors (Paperback, Softcover reprint of the original 1st ed. 1994)
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Coherent Optical Interactions in Semiconductors (Paperback, Softcover reprint of the original 1st ed. 1994)
Series: NATO Science Series B:, 330
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Total price: R4,292
Discovery Miles: 42 920
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The NATO Advanced Research Workshop on Coherent Optical Processes
in Semiconductors was held in Cambridge, England on August
11-14,1993. The idea of holding this Workshop grew from the recent
upsurge in activity on coherent transient effects in
semiconductors. The development of this field reflects advances in
both light sources and the quality of semiconductor structures,
such that tunable optical pulses are now routinely available whose
duration is shorter than the dephasing time for excitonic states in
quantum wells. It was therefore no surprise to the organisers that
as the programme developed, there emerged a heavy emphasis on
time-resolved four-wave mixing, particularly in quantum wells.
Nevertheless, other issues concerned with coherent effects ensured
that several papers on related problems contributed some variety.
The topics discussed at the workshop centred on what is a rather
new field of study, and benefited enormously by having participants
representing many of the principal groups working in this area.
Several themes emerged through the invited contributions at the
Workshop. One important development has been the careful
examination of the two-level model of excitonic effects; a model
which has been remarkably successful despite the expected
complexities arising from the semiconductor band structure. Indeed,
modest extensions to the two level model have been able to offer a
useful account for some of the complicated polarisation dependence
of four-wave mixing signals from GaAs quantum wells. This work
clearly is leading to an improved understanding of excitons in
confined systems.
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