Four-wave mixing signals from extended e
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G. Bongiovanni; A. Mura; J.L. Staehli
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Article
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1994
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Elsevier Science
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English
โ 210 KB
We investigate the dependence of four-wave mixing response on the photon energy close to the fundamental exciton (X) resonance in GaAs quantum wells. We find that crosspolarised incident fields give rise to a non-linear signal which decays faster at energies below the \(\mathrm{X}\) line centre than