Journal
APPLIED PHYSICS LETTERS
Volume 96, Issue 21, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3440967
Keywords
aluminium compounds; gallium arsenide; III-V semiconductors; nanofabrication; nanowires; photon antibunching; photonic crystals; semiconductor growth; semiconductor heterojunctions; semiconductor quantum dots; spectral line breadth
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Funding
- Federal Ministry of Education and Research
- State of Bavaria
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Positioned AlGaAs nanowires with an embedded axial heterostructure GaAs quantum dot (QD) on a prepatterned substrate have been grown. The geometry of the nanowires allows for an outcoupling of the emitted light through the nanowire tip and thereby to probe a single nanowire directly on the growth substrate. Single QD linewidths as small as 95 mu eV and photon antibunching were observed at continuous wave laser excitation with a second order autocorrelation function g((2))(0)=0.46. The results represent an attractive bottom-up fabrication approach for the realization of high efficiency photonic wire based single photon sources. (C) 2010 American Institute of Physics. [doi:10.1063/1.3440967]
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