5 papers
Counterdirectional Exciton and Trion Motion in Applied Electric Field
Daniel Vaz, Yuanjun Guan, Qiaochu Wan +13
Charged excitonic complexes are central to the optoelectronic and many-body properties of semiconductors, yet their real-space transport dynamics remain largely unexplored. Here, w…
Controlled Switching of Bose-Einstein Condensation in a Mixture of Two Species of Polaritons
Hassan Alnatah, Shuang Liang, Qiaochu Wan +5
We report temperature-dependent switching between lower and upper polariton condensation in a GaAs/AlGaAs microcavity when both of these species have comparable populations in a mi…
Strong coupling of polaritons at room temperature in a GaAs/AlGaAs structure
Hassan Alnatah, Shuang Liang, Qiaochu Wan +7
We report direct measurement of the dispersion relation of polaritons in GaAs/AlGaAs microcavity structures at room temperature, which clearly shows that the polaritons are in the…
Light-Induced Electron Pairing in a Bilayer Structure
Qiaochu Wan, Daniel Vaz, Li Xiang +11
Previous experimental and theoretical work has given evidence of the existence of doubly charged exciton states in strongly screened bilayers of transition metal dichalcogenide (TM…
Bose-Einstein condensation of polaritons at room temperature in a GaAs/AlGaAs structure
Hassan Alnatah, Qi Yao, Qiaochu Wan +5
We report the canonical properties of Bose-Einstein condensation of polaritons, seen previously in many low-temperature experiments, at room temperature in a GaAs/AlGaAs structure.…