Photoluminiscence excitation spectrum of a semiparabolic quantum well
✍ Scribed by J.L. Martı́nez-Cuéllar; H. Rodrı́guez-Coppola; R. Pérez-Alvarez
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 206 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0749-6036
No coin nor oath required. For personal study only.
✦ Synopsis
The calculation of the energy levels of a semiparabolic quantum well are presented using two approximations: the direct numerical solution of the Schrödinger equation for the one parabolic band EFA model by a transfer matrix technique and the simplified two band Kane's model. The comparison of the results is given. The transition probability per unit time is calculated and the results are compared with the photoluminescent excitation spectrum of the quantum well. The assignment of transitions for different peaks in the spectrum is given and compared with the one given by Gossard et al.
📜 SIMILAR VOLUMES
We study semiconductor quantum-well samples with different disorder strengths by coherent excitation spectroscopy with particular emphasis on disorder-mediated couplings of exciton subensembles. Our experiments show that there is no coherent coupling of excitons in different quantum islands and in a
The spectrum of a double well constructed of a square barrier embedded in an infinite well is analyzed. Level statistics for levels slightly above the barrier show signs of Wigner statistics usually associated with quantum chaos. The correspondence with Wigner statistics improves when an ensemble of
The analytical solutions of the Schrödinger equation for a double quantum well structure (DQWS) subjected to an externally applied tilted magnetic field are obtained and the results are discussed. The dependency of the energy spectrum of the system on the applied magnetic field direction is also giv