24 February 2010 Recent progress towards acoustically mediated carrier injection into individual nanostructures for single photon generation
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Abstract
We report on recent progress towards single photon sources based on quantum dot and quantum post nanostructures which are manipulated using surface acoustic waves. For this concept acoustic charge conveyance in a quantum well is used to spatially separate electron and hole pairs and transport these in the plane of the quantum well. When conveyed to the location of a quantum dot or quantum post these carriers are sequentially captured into the confined levels. Their radiative decays gives rise to the emission of a train of single photons. Three different approaches using (i) straininduced and (ii) self-assembled quantum dots, and (iii) self-assembled quantum posts are discussed and their application potential is discussed. First devices and initial experiments towards the realization of such an acoustically driven single photon source are presented and remote acoustically triggered injection into few individual emitters is demonstrated.
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Stefan Völk, Stefan Völk, Florian J. R. Schülein, Florian J. R. Schülein, Florian Knall, Florian Knall, Achim Wixforth, Achim Wixforth, Hubert J. Krenner, Hubert J. Krenner, Arne Laucht, Arne Laucht, Jonathan J Finley, Jonathan J Finley, Juha Riikonen, Juha Riikonen, Marco Mattila, Marco Mattila, Markku Sopanen, Markku Sopanen, Harri Lipsanen, Harri Lipsanen, Jun He, Jun He, Tuan A. Truong, Tuan A. Truong, Hyochul Kim, Hyochul Kim, Pierre M. Petroff, Pierre M. Petroff, } "Recent progress towards acoustically mediated carrier injection into individual nanostructures for single photon generation", Proc. SPIE 7610, Quantum Dots and Nanostructures: Synthesis, Characterization, and Modeling VII, 76100J (24 February 2010); doi: 10.1117/12.842511; https://doi.org/10.1117/12.842511
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