Abstract
The design of ZnCdSe-ZnMnSe-based quantum wells is considered, in order to obtain a large shift of the peak absorption wavelength in the far infrared range, due to a giant Zeeman splitting with magnetic field, while maintaining a reasonably large value of peak absorption. A triple quantum-well structure with a suitable choice of parameters has been found to satisfy such requirements. A maximal tuning range between 14.6 and 34.7 meV is obtained, when the magnetic field varies from zero to 5 T, so the wavelength of the absorbed radiation decreases from 85.2 to 35.7 μm with absorption up to 1.25% at low temperatures. These structures might form the basis for magnetic field tunable photodetectors and quantum cascade lasers in the terahertz range.
Original language | English |
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Article number | 1344143 |
Pages (from-to) | 1614-1621 |
Number of pages | 8 |
Journal | IEEE Journal of Quantum Electronics |
Volume | 40 |
Issue number | 11 |
Early online date | 18 Oct 2004 |
DOIs | |
Publication status | Published - 1 Nov 2004 |
Externally published | Yes |