47 citations · 207 across the 26 of their papers we have counts for
13 papers · 1 filter
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…
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.…
Bose condensation of upper-branch exciton-polaritons in a transferrable microcavity
Xingzhou Chen, Hassan Alnatah, Danqun Mao +9
Exciton-polaritons are composite bosonic quasiparticles arising from the strong coupling of excitonic transitions and optical modes. Exciton-polaritons have triggered wide explorat…
Coherence measurements of polaritons in thermal equilibrium reveal a power law for two-dimensional condensates
Hassan Alnatah, Qi Yao, Jonathan Beaumariage +7
We have created a spatially homogeneous polariton condensate in thermal equilibrium, up to very high condensate fraction. Under these conditions, we have measured the coherence as…
Persistent, controllable circulation of a polariton ring condensate
Q. Yao, P. Comaron, H. A. Alnatah +7
Persistent circulation is a canonical effect of superfluidity. In previous experiments, quantized circulation has been observed in polariton condensates, usually far from equilibri…
Critical fluctuations in a confined driven-dissipative quantum condensate
Hassan Alnatah, Paolo Comaron, Shouvik Mukherjee +6
Phase fluctuations determine the low-energy properties of quantum condensates. However, at the condensation threshold, both density and phase fluctuations are relevant. While stron…
Ballistic transport of a polariton ring condensate with spin precession
Qi Yao, Evgeny Sedov, Shouvik Mukherjee +6
It is now routine to make Bose-Einstein condensates of polaritons with long enough lifetime and low enough disorder to travel ballistically for hundreds of microns in quasi-one-dim…
Reanalysis of experimental determinations of polariton-polariton interactions in microcavities
D. W. Snoke, V. Hartwell, J. Beaumariage +7
The polariton-polariton interaction strength is an important parameter for all kinds of applications using the nonlinear properties of polaritons, such as optical switching and sin…
Dynamics of spin polarization in tilted polariton rings
S. Mukherjee, V. K. Kozin, A. V. Nalitov +9
We have observed the effect of pseudo magnetic field originating from the polaritonic analog of spin-orbit coupling (TETM splitting) on a polariton condensate in a ring-shaped m…
Direct observation of the quantum-fluctuation driven amplitude mode in a microcavity polariton condensate
Mark Steger, Ryo Hanai, Alexander Orson Edelman +7
The Higgs amplitude mode is a collective excitation studied and observed in a broad class of matter, including superconductors, charge density waves, antiferromagnets, 3He p-wave s…
Observation of Non-equilibrium Motion and Equilibration in Polariton Rings
S. Mukherjee, D. M. Myers, R. G. Lena +8
We present a study of the macroscopic dynamics of a polariton condensate formed by non-resonant optical excitation in a quasi-one-dimensional ring-shaped microcavity. The presence…
Pushing Photons with Electrons: Observation of the Polariton Drag Effect
D. M. Myers, Q. Yao, H. Alnatah +6
We show the direct effect of free electrons colliding with polaritons, changing their momentum. The result of this interaction of the electrons with the polaritons is a change in t…
Polariton-Enhanced Exciton Transport
D. M. Myers, S. Mukherjee, J. Beaumariage +4
The transport distance of excitons in exciton-polariton systems has previously been assumed to be very small (m). The sharp spatial profiles observed when generating…