Single photon emission at 1.55 μm from charged and neutral exciton confined in a single quantum dash
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We investigate charged and neutral exciton complexes confined in a single self-assembled InAs/InGaAlAs/InP quantum dash emitting at 1.55 μm. The emission characteristics have been probed by measuring high-spatial-resolution polarization-resolved photoluminescence and cross-correlations of photon emission statistics at T = 5 K. The photon auto-correlation histogram of the emission from both the neutral and charged exciton indicates a clear antibunching dip with as-measured g(2)(0) values of 0.18 and 0.31, respectively. It proves that these exciton complexes confined in single quantum dashes of InP-based material system can act as true single photon emitters being compatible with standard long-distance fiber communication technology.
Dusanowski , Ł , Syperek , M , Mrowiński , P , Rudno-Rudziński , W , Misiewicz , J , Somers , A , Höfling , S , Kamp , M , Reithmaier , J P & Sȩk , G 2014 , ' Single photon emission at 1.55 μ m from charged and neutral exciton confined in a single quantum dash ' Applied Physics Letters , vol 105 , no. 2 , 021909 . DOI: 10.1063/1.4890603
Applied Physics Letters
© 2014 AIP Publishing LLC
This research was supported by the Polish Ministry of Science and Higher Education/the National Science Center Grant No. 2011/01/B/ST3/02379. J.M. would like to acknowledge the support from Deutsche Forschungsgemeinschaft and Foundation for Polish Science within the Copernicus Award. Ł.D. would like to acknowledge the support from fellowship co-financed by the European Commission within European Social Fund. P.M. is a scholar within Sub-measure 8.2.2 Regional Innovation Strategies, Measure 8.2 Transfer of knowledge, Priority VIII Regional human resources for the economy Human Capital Operational Programme co-financed by European Social Fund and state budget.
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