dc.contributor.author | Zhao, Hui | |
dc.contributor.author | Dal Don, B. | |
dc.contributor.author | Moehl, Sebastian | |
dc.contributor.author | Kalt, Heinz | |
dc.contributor.author | Ohkawa, K. | |
dc.contributor.author | Hommel, D. | |
dc.date.accessioned | 2011-04-06T19:45:35Z | |
dc.date.available | 2011-04-06T19:45:35Z | |
dc.date.issued | 2003-01 | |
dc.identifier.citation | Hui Zhao, B. Dal Don, S. Moehl, H. Kalt, K. Ohkawa and D. Hommel, Spatio-temporal dynamics of quantum-well excitons, Physical Review B, 67 035306 (2003). http://link.aps.org/doi/10.1103/PhysRevB.67.035306 | |
dc.identifier.uri | http://hdl.handle.net/1808/7357 | |
dc.description | Permissions were not obtained for sharing the full text of this article. Full text available from the American Physical Society and from arXiv. See links in this record. | |
dc.description.abstract | We investigate the lateral transport of excitons in ZnSe quantum wells by using time-resolved micro-photoluminescence enhanced by the introduction of a solid immersion lens. The spatial and temporal resolutions are 200 nm and 5 ps, respectively. Strong deviation from classical diffusion is observed up to 400 ps. This feature is attributed to the hot-exciton effects, consistent with previous experiments under cw excitation. The coupled transport-relaxation process of hot excitons is modelled by Monte Carlo simulation. We prove that two basic assumptions typically accepted in photoluminescence investigations on excitonic transport, namely (i) the classical diffusion model as well as (ii) the equivalence between the temporal and spatial evolution of the exciton population and of the measured photoluminescence, are not valid for low-temperature experiments. | |
dc.publisher | American Physical Society | |
dc.relation.hasversion | http://arxiv.org/abs/cond-mat/0207326v2 | |
dc.subject | Strongly Correlated Electrons | |
dc.subject | Mesoscale and Nanoscale Physics | |
dc.title | Spatio-temporal dynamics of quantum-well excitons | |
dc.type | Other | |
kusw.kuauthor | Zhao, Hui | |
kusw.kudepartment | Physics and Astronomy | |
kusw.oastatus | publisherdenied | |
dc.identifier.doi | 10.1103/PhysRevB.67.035306 | |
kusw.oapolicy | This item does not meet KU Open Access policy criteria. Publisher denied. | |
dc.rights.accessrights | openAccess | |