Signatures of polaritonic normal modes in the photoluminescence from periodic multiple quantum well structures following continuum excitation

M. Hubner, C. Ell, J. Prineas, P. Brick, E. S. Lee, G. Khitrova, H. M. Gibbs, W. Hoyer, M. Kira, S. W. Koch

Research output: Contribution to conferencePaper

Abstract

Photoluminescence experiments were performed on high-quality InGaAs/GaAs periodic multiple quantum well structures with up to N = 100 quantum wells, where the exciton emission is strongly influenced by the coherent interwell coupling, showing up in multiple linesplitting and a crossing of the normal modes around Bragg resonance. For N≥30 and a certain distance between adjacent wells, a quadratic increase of the amplitude and an increasing directionality of the vertical emission are observed. The weakest emission occurs in Bragg resonance, where under resonant excitation, a strong superradiant reemission takes place.

Original languageEnglish (US)
Number of pages1
StatePublished - Jan 1 1999
EventProceedings of the 1999 Quantum Electronics and Laser Science Conference (QELS '99) - Baltimore, MD, USA
Duration: May 23 1999May 28 1999

Other

OtherProceedings of the 1999 Quantum Electronics and Laser Science Conference (QELS '99)
CityBaltimore, MD, USA
Period5/23/995/28/99

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Signatures of polaritonic normal modes in the photoluminescence from periodic multiple quantum well structures following continuum excitation'. Together they form a unique fingerprint.

  • Cite this

    Hubner, M., Ell, C., Prineas, J., Brick, P., Lee, E. S., Khitrova, G., Gibbs, H. M., Hoyer, W., Kira, M., & Koch, S. W. (1999). Signatures of polaritonic normal modes in the photoluminescence from periodic multiple quantum well structures following continuum excitation. Paper presented at Proceedings of the 1999 Quantum Electronics and Laser Science Conference (QELS '99), Baltimore, MD, USA, .