Two-dimensional shrinkage of the exciton wavefunction in quantum wells probed by optical absorption
β Scribed by Yasuaki Masumoto; Mitsuru Matsuura; Seigo Tarucha; Hiroshi Okamoto
- Publisher
- Elsevier Science
- Year
- 1986
- Weight
- 53 KB
- Volume
- 170
- Category
- Article
- ISSN
- 0167-2584
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π SIMILAR VOLUMES
In this work, we show the feasibility of all-optical control of time delay in a Bragg grating with an active defect that consists in an asymmetric double quantum-well GaAs/Al x Ga 1Γx As. The double quantum-well is modeled as a K-V-type four level system. The refractive index of the defect can be mo
We show that the presence of InAs dots embedded in a host GaAs quantum well containing a two-dimensional electron gas dramatically modiΓΏes the cyclotron resonance (CR). Far-infrared CR measurements show two modes with di erent dispersions with applied magnetic ΓΏeld B. The lower-frequency mode, with