We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Properties and Turning of Intraband Optical Absorption in In[sub x]Ga[sub 1-x]As/GaAs Self-Assembled Quantum Dot Superlattice.
- Authors
Liu, B.; Zhuang, Q. D.; Yoon, S. F.; Dai, J. H.; Kong, M. Y.; Zeng, Y. P.; Li, J. M.; Lin, L. Y.; Zhang, H. J.
- Abstract
We investigated properties of intraband absorption in In[sub x]Ga[sub 1-x]As quantum dots (QDs) superlattice. Energy levels in conduction band in QDs were calculated for a cone-shaped quantum dot associated with coupling between QDs in the framework of the effective-mass envelope-function theory. Theoretical results demonstrated that energy levels in conduction band were greatly affected by the vertical coupling between quantum dots, which can be used to modify transition wavelength by adjusting the space layer thickness. Intraband transition is really sensitive to normal incidence and the absorption peak intensity is dependent on the polarization. A satisfying agreement is found between theoretical and experimental values. This result opens up prospects for the fabrication of QDs infrared detectors, which work at atmospheric windows.
- Subjects
QUANTUM dots; LIGHT absorption; SUPERLATTICES
- Publication
International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics, 2001, Vol 15, Issue 13, p1959
- ISSN
0217-9792
- Publication type
Article
- DOI
10.1142/S0217979201004800