Advances in self-assembled semiconductor quantum dot lasers
โ Scribed by M. Henini; M. Bugajski
- Publisher
- Elsevier Science
- Year
- 2005
- Tongue
- English
- Weight
- 231 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0026-2692
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We report measurements of ultra-long coherence in self-assembled quantum dots. Transient four-wave mixing experiments at 5 K show an average dephasing time of 372 ps, corresponding to a homogeneous linewidth of 3.5 ยตeV, which is significantly smaller than the linewidth observed in single-dot lumines
The light-emission energy E of self-assembled semiconductor quantum dots (QDs) is determined by the complex interplay of parameters such as compositions of QDs and confining layers (CLs), strain of QDs (imposed by the QD mismatch to CLs) and sizes and shapes of QDs. In order to have RT emission in t