Recent progress towards acoustically mediated carrier injection into individual nanostructures for single photon generation
| Autor: | Florian Knall, Juha Riikonen, Achim Wixforth, Hyochul Kim, Tuan A. Truong, Markku Sopanen, Hubert J. Krenner, Harri Lipsanen, Arne Laucht, Jun He, Florian J. R. Schülein, Pierre M. Petroff, Marco Mattila, Stefan Völk, Jonathan J. Finley |
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| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Physics
Quantum Physics Photon Condensed Matter - Mesoscale and Nanoscale Physics business.industry FOS: Physical sciences Charge (physics) Acoustic wave Electron Quantum dot Single-photon source Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Optoelectronics ddc:530 Quantum Physics (quant-ph) business Quantum Quantum well |
| Popis: | 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) strain- induced 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. 11 pages, 7 figures |
| Databáze: | OpenAIRE |
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