Abstract
Low temperature micro-photoluminecence and second-order single photon correlation experiments were performed on individual self-assembled In0.47Al0.34Ga0.19As/Al0.3Ga0.7As/GaAs quantum dots emitting in the range of 680-780 nm. Emission lines originating from exciton, biexciton, and charge exciton confined in the same dot could be identified. The derived exciton fine structure splitting is similar to 125 mu eV, whereas the biexciton and charge exciton binding energies are similar to 4 and similar to 9meV, respectively. The photon correlation statistics measured for the exciton emission exhibited a clear antibunching with the value of g(X-X)(2)(0) = 0.30 +/- 0.05, confirming unambiguously that such quantum dots act as true single photon quantum emitters. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4750241]
Original language | English |
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Article number | 103108 |
Number of pages | 4 |
Journal | Applied Physics Letters |
Volume | 101 |
Issue number | 10 |
DOIs | |
Publication status | Published - 3 Sept 2012 |
Keywords
- FLUORESCENCE
- LIGHT
- DEVICE