Abstract
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 language | English |
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Article number | 091117 |
Number of pages | 4 |
Journal | Applied Physics Letters |
Volume | 104 |
Issue number | 9 |
DOIs | |
Publication status | Published - 4 Mar 2014 |
Keywords
- Bose-Einstein condensation
- Semiconductor Quantum Microcavity
- Laser