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Proceedings Paper

Integrated quantum dot optomechanics
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Paper Abstract

Semiconductor quantum dots (QDs) combine high optical activity and the possibility of integration in a myriad of devices. Here, we demonstrate the integration of (Al)GaAs QDs in nanophononic strings and show that the excitonic two-level system of the QD couples to the confined phononic modes in string. For the chosen design the coupling is mediated via the valence band deformation potential and shear strain. Finite element modelling (FEM) shows that the optomechanical coupling parameter γom>0.15 meV/nm, exceeding that of vibrating nanowire architectures by one order of magnitude1.

Paper Details

Date Published: 26 February 2020
PDF: 7 pages
Proc. SPIE 11289, Photonic and Phononic Properties of Engineered Nanostructures X, 1128915 (26 February 2020); doi: 10.1117/12.2544300
Show Author Affiliations
Anja Vogele, Univ. Augsburg (Germany)
Maximilian M. Sonner, Univ. Augsburg (Germany)
Nanosystems Initiative Munich (Germany)
Benjamin Mayer, Univ. Augsburg (Germany)
Xueyong Yuan, Univ. Augsburg (Germany)
Johannes Kepler Univ. Linz (Austria)
Matthias Weiß, Univ. Augsburg (Germany)
Nanosystems Initiative Munich (Germany)
Emeline D. S. Nysten, Univ. Augsburg (Germany)
Nanosystems Initiative Munich (Germany)
Saimon F. Covre da Silva, Johannes Kepler Univ. Linz (Austria)
Armando Rastelli, Johannes Kepler Univ. Linz (Austria)
Hubert J. Krenner, Univ. Augsburg (Germany)
Nanosystems Initiative Munich (Germany)


Published in SPIE Proceedings Vol. 11289:
Photonic and Phononic Properties of Engineered Nanostructures X
Ali Adibi; Shawn-Yu Lin; Axel Scherer, Editor(s)

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