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

Journal Article · Mon Jan 26 00:00:00 EST 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4906611· OSTI ID:22415166

Tepper, J. ^[1]; Akimov, A. V. ^[2]; Unsleber, S.; Schneider, C.; Kamp, M. ^[3]; Höfling, S. ^[4]; Yakovlev, D. R.; Bayer, M. ^[1]

---

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)

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.

• OSTI ID: 22415166
• Journal Information: Applied Physics Letters, Vol. 106, Issue 4; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
77 NANOSCIENCE AND NANOTECHNOLOGY
ALUMINIUM ARSENIDES
GALLIUM ARSENIDES
INDIUM ARSENIDES
LASERS
POLYMERS
QUANTUM DOTS