George, Adrian A., Smowton, Peter Michael ORCID: https://orcid.org/0000-0002-9105-4842, Mi, Z. and Bhattacharya, P.
2007.
Long wavelength quantum-dot lasers selectively populated using tunnel injection.
Semiconductor Science and Technology
22
(5)
, pp. 557-560.
10.1088/0268-1242/22/5/018
|
Official URL: http://dx.doi.org/10.1088/0268-1242/22/5/018
Abstract
Using measured amplified spontaneous emission data, we have derived and analysed the carrier distribution of a five-layer tunnelling injection quantum-dot structure at temperatures of 300 K and 350 K. The results are consistent with the direct injection of electrons from the injector well into a subset of lower energy dot states. The carrier distribution spectra contain features which suggest that dots of a particular size within the ensemble are preferentially populated leading to a reduced spectral broadening of the emission.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Physics and Astronomy |
| Subjects: | Q Science > QC Physics |
| Publisher: | Institute of Physics |
| ISSN: | 0268-1242 |
| Last Modified: | 25 Oct 2022 08:30 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/53210 |
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