𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Confinement versus localization for quantum wells and quantum wires in a self-assembled structure

✍ Scribed by I. Rasnik; L.G.C. Rego; M.V. Marquezini; A.L.C. Triques; M.J.S.P. Brasil; J.A. Brum; M.A. Cotta

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
69 KB
Volume
25
Category
Article
ISSN
0749-6036

No coin nor oath required. For personal study only.

✦ Synopsis

We investigate the effects of interface localization due to microroughness in a sample presenting a quantum well and a quantum wire. The magnetoshift of the emission lines measured at different temperatures are analysed using a model where the average effect of the microroughness is represented by a Gaussian defect. We obtain a quantitative estimate of the exciton localization due to the microroughness. As the temperature increases the excitons are released from the weak localized defects. Time-resolved luminescence results corroborate this interpretation.

πŸ“œ SIMILAR VOLUMES

Optical Nonlinearities in a Microcavity
Optical Nonlinearities in a Microcavity with InGaN Quantum Wells: Self-Assembled Quantum Dots Approach
✍ Nikolaev, V.V. ;Portnoi, M.E. πŸ“‚ Article πŸ“… 2002 πŸ› John Wiley and Sons 🌐 English βš– 99 KB πŸ‘ 2 views

We incorporate the quantum dot picture into analysis of light-matter coupling in GaN microcavities with InGaN quantum wells. We investigate quantitatively the transition from weak to strong coupling regime with the variation of the in-plane density of quantum dots, radiative recombination time of th