Resonant excitation of nanowire quantum dots
| Autor: | G. E. Cirlin, Lorenzo Leandro, Rodion R. Reznik, Jacob Hastrup, Nika Akopian |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Fabrication Computer Networks and Communications business.industry Nanowire Physics::Optics Statistical and Nonlinear Physics 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 01 natural sciences Condensed Matter::Materials Science Photon entanglement Computational Theory and Mathematics Resonance fluorescence Quantum dot 0103 physical sciences Computer Science (miscellaneous) Optoelectronics Photonics 010306 general physics 0210 nano-technology business Quantum Excitation |
| Zdroj: | Leandro, L, Hastrup, J, Reznik, R, Cirlin, G & Akopian, N 2020, ' Resonant excitation of nanowire quantum dots ', npj Quantum Information, vol. 6, no. 1 . https://doi.org/10.1038/s41534-020-00323-9 |
| DOI: | 10.1038/s41534-020-00323-9 |
| Popis: | GaAs quantum dots in nanowires are one of the most promising candidates for scalable quantum photonics. They have excellent optical properties, can be frequency-tuned to atomic transitions, and offer a robust platform for fabrication of multi-qubit devices that promise to unlock the full technological potential of quantum dots. Coherent resonant excitation is necessary for virtually any practical application because it allows, for instance, for on-demand generation of single and entangled photons, photonic clusters states, and electron spin manipulation. However, emission from nanowire structures under this excitation scheme has never been demonstrated. Here we show, for the first time, biexciton–exciton cascaded emission via resonant two-photon excitation and resonance fluorescence from an epitaxially grown GaAs quantum dot in an AlGaAs nanowire. We also report that resonant excitation schemes, combined with above-bandgap excitation, can be used to clean and enhance the emission of nanowire quantum dots. |
| Databáze: | OpenAIRE |
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