Time resolved measurements on low‐density single quantum dots at 1300 nm
| Autor: | Annamaria Gerardino, Blandine Alloing, Andrea Fiore, L. Lunghi, C. Monat, C. Zinoni, Lianhe Li |
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| Přispěvatelé: | Photonics and Semiconductor Nanophysics |
| Rok vydání: | 2006 |
| Předmět: |
Photoluminescence
Materials science Condensed Matter::Other Exciton Binding energy FOS: Physical sciences Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Molecular physics Condensed Matter - Other Condensed Matter Condensed Matter::Materials Science Planar Quantum dot Ground state Biexciton Excitation Other Condensed Matter (cond-mat.other) |
| Zdroj: | Physica Status Solidi C: Conferences, 3(11), 3717-3721. Wiley-VCH Verlag |
| ISSN: | 1610-1642 1862-6351 1610-1634 |
| DOI: | 10.1002/pssc.200671571 |
| Popis: | We present time integrated and time resolved measurements on single In/As quantum dots (QD) emitting at 1300nm, at 10K, embedded in a planar microcavity. We clearly identify a standard spectroscopic signature from single QDs and compare the exciton line width and biexciton (BX) binding energy for several QDs. We present this data for QDs spatially selected by etched mesas and metallic apertures. Time resolved photoluminescence (PL) from single electron-hole recombination in the ground state of the QD is investigated as a function of excitation power and temperature. The measurements reveal the presence of a background emission that delays the PL of excitons in the ground state. Proceeding - 4th International Conference on Quantum Dots - will be published in Physica Status Solidi (c) |
| Databáze: | OpenAIRE |
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