Quantum well structures
US5481397A · kind A · utility
13Cited by
5References
32Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 26, 1992 |
| Grant date | Jan 2, 1996 |
| Priority date | — |
| Expiry date | Feb 26, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/3556
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
By forming quantum well (QW) structures with two different heterojunctions having different band offsets it is possible to form QWs having, when subjected to optical excitation, dipoles. The presence of a dipole in a narrow enough well results in QWs having absorption edges which, unlike those of conventional QWs can be shifted to the blue by application of an electric field of appropriate polarity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.