Experimental investigation towards a periodically pumped single-photon source
Access rights
openAccess
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Date
2006-07-15
Department
Major/Subject
Mcode
Degree programme
Language
en
Pages
5
1-5
1-5
Series
PHYSICAL REVIEW B, Volume 74, issue 3
Abstract
Experiments towards a periodically pumped single-photon source are presented. The lateral piezoelectric field of a surface acoustic wave dissociates laser-generated two-dimensional excitons into electrons and holes. These carriers are separated by the wave potential and are transported over macroscopic length scales without recombining. When reaching a stress-induced quantum dot in the quantum well they periodically populate the zero-dimensional states and recombine, emitting single photons periodically in time according to the surface acoustic-wave frequency. We have successfully reduced the number of pumped quantum dots down to 100 and have detected a strong blinking photoluminescence signal. By further reducing the number of quantum dots down to 1 a periodically pumped single photon source could be realized.Description
Keywords
Other note
Citation
Bödefeld, C, Ebbecke, J, Toivonen, J, Sopanen, M, Lipsanen, H & Wixforth, A 2006, ' Experimental investigation towards a periodically pumped single-photon source ', Physical Review B, vol. 74, no. 3, 035407, pp. 1-5 . https://doi.org/10.1103/PhysRevB.74.035407