Experimental investigation towards a periodically pumped single-photon source

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2006-07-15
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Language
en
Pages
5
1-5
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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.
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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