Magneto-exciton-polariton condensation in a sub-wavelength high contrast grating based vertical microcavity

J. Fischer*, S. Brodbeck, B. Zhang, Z. Wang, L. Worschech, H. Deng, M. Kamp, C. Schneider, S. Hoefling

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


We comparably investigate the diamagnetic shift of an uncoupled quantum well exciton with a microcavity exciton-polariton condensate on the same device. The sample is composed of multiple GaAs quantum wells in an AlAs microcavity, surrounded by a Bragg reflector and a sub-wavelength high contrast grating reflector. Our study introduces an independent and easily applicable technique, namely, the measurement of the condensate diamagnetic shift, which directly probes matter contributions in polariton condensates and hence discriminates it from a conventional photon laser.

Original languageEnglish
Article number091117
Number of pages4
JournalApplied Physics Letters
Issue number9
Publication statusPublished - 4 Mar 2014


  • Bose-Einstein condensation
  • Semiconductor Quantum Microcavity
  • Laser


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