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Title: Independent dynamic acousto-mechanical and electrostatic control of individual quantum dots in a LiNbO{sub 3}-GaAs hybrid

We demonstrate tuning of single quantum dot emission lines by the combined action of the dynamic acoustic field of a radio frequency surface acoustic wave and a static electric field. Both tuning parameters are set all-electrically in a LiNbO{sub 3}-GaAs hybrid device. The surface acoustic wave is excited directly on the strong piezoelectric LiNbO{sub 3} onto which a GaAs-based p-i-n photodiode containing a single layer of quantum dots was epitaxially transferred. We demonstrate dynamic spectral tuning with bandwidths exceeding 3 meV of single quantum dot emission lines due to deformation potential coupling. The center energy of the dynamic spectral oscillation can be independently programmed simply by setting the bias voltage applied to the diode.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [2] ; ;  [2] ;  [4] ; ;  [1] ;  [4]
  1. Lehrstuhl für Experimentalphysik 1 and Augsburg Centre for Innovative Technologies (ACIT), Universität Augsburg, Universitätstr. 1, 86159 Augsburg (Germany)
  2. Walter Schottky Institut and Physik Department, TU München, Am Coulombwall 4, 85748 Garching (Germany)
  3. (United States)
  4. (NIM), Schellingstr. 4, 80799 München (Germany)
Publication Date:
OSTI Identifier:
22395669
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 1; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; COUPLING; DEFORMATION; ELECTRIC FIELDS; ELECTRIC POTENTIAL; EMISSION; EPITAXY; GALLIUM ARSENIDES; NIOBATES; NIOBIUM OXIDES; OSCILLATIONS; PIEZOELECTRICITY; POTENTIALS; QUANTUM DOTS; RADIOWAVE RADIATION; SOUND WAVES; SURFACES; TUNING