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Title: Impact of nanomechanical resonances on lasing from electrically pumped quantum dot micropillars

We use a picosecond acoustics technique to modulate the laser output of electrically pumped GaAs/AlAs micropillar lasers with InGaAs quantum dots. The modulation of the emission wavelength takes place on the frequencies of the nanomechanical extensional and breathing (radial) modes of the micropillars. The amplitude of the modulation for various nanomechanical modes is different for every micropillar which is explained by a various elastic contact between the micropillar walls and polymer environment.
Authors:
;  [1] ;  [2] ; ; ;  [3] ;  [4] ; ;  [1] ;  [5]
  1. Experimentelle Physik 2, TU Dortmund University, 44227 Dortmund (Germany)
  2. School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD (United Kingdom)
  3. Technische Physik, Physikalisches Institut and Wilhelm Conrad Röntgen-Center for Complex Material Systems, University of Würzburg, Am Hubland, 97074 Würzburg (Germany)
  4. School of Physics and Astronomy, University of St Andrews, KY16 0SS St Andrews (United Kingdom)
  5. (Russian Federation)
Publication Date:
OSTI Identifier:
22415166
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 4; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 77 NANOSCIENCE AND NANOTECHNOLOGY; ALUMINIUM ARSENIDES; GALLIUM ARSENIDES; INDIUM ARSENIDES; LASERS; POLYMERS; QUANTUM DOTS