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

T. Czerniuk*, J. Tepper, A. V. Akimov, S. Unsleber, C. Schneider, M. Kamp, S. Hoefling, D. R. Yakovlev, M. Bayer

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)
2 Downloads (Pure)

Abstract

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.

Original languageEnglish
Article number041103
Number of pages5
JournalApplied Physics Letters
Volume106
Issue number4
DOIs
Publication statusPublished - 26 Jan 2015

Keywords

  • Laser
  • Nanorods
  • Generation
  • Excitation
  • Phonons
  • Pulses

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