Toward quantum interference of photons from independent quantum dots

被引:10
|
作者
Benyoucef, M. [1 ,2 ]
Wang, L. [2 ]
Rastelli, A. [1 ]
Schmidt, O. G. [1 ]
机构
[1] IFW Dresden, Inst Integrat Nanosci, D-01069 Dresden, Germany
[2] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany
关键词
gallium arsenide; III-V semiconductors; optical beam splitters; photoluminescence; quantum interference phenomena; semiconductor quantum dots; SINGLE PHOTONS; PAIRS; MOLECULE; DEVICE; ATOMS;
D O I
10.1063/1.3275702
中图分类号
O59 [应用物理学];
学科分类号
摘要
The authors present steps toward the experimental realization of indistinguishable single photon sources based on independent unstrained GaAs quantum dots (QDs), which are embedded in planar cavities to improve the light collection efficiency. The emission lines of two QDs are brought into resonance and overlapped at a beam splitter. The coherence properties of the emitted photons are investigated by measuring the first-order field correlation function. Despite the fact that the short dephasing time of the selected QDs prevents us to observe quantum interference between the two photons, the approach could be applied to other QDs.
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页数:3
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