248 citations · 1.1k across the 21 of their papers we have counts for
20 papers
Single-shot spatial instability and electric control of polariton condensates at room temperature
Ying Gao, Xuekai Ma, Xiaokun Zhai +11
In planar microcavities, the transverse-electric and transverse-magnetic (TE-TM) mode splitting of cavity photons arises due to their different penetration into the Bragg mirrors a…
Electrically controlling vortices in a neutral exciton polariton condensate at room temperature
Xiaokun Zhai, Xuekai Ma, Ying Gao +7
Manipulating bosonic condensates with electric fields is very challenging as the electric fields do not directly interact with the neutral particles of the condensate. Here we demo…
Manipulating polariton condensates by Rashba-Dresselhaus coupling at room temperature
Yao Li, Xuekai Ma, Xiaokun Zhai +4
The spin-orbit coupling plays an important role in the spin Hall effect and the topological insulators. In addition, the spin-orbit coupled Bose-Einstein condensates show remarkabl…
Tilting flat bands in an empty microcavity
Ying Gao, Yao Li, Xuekai Ma +4
Recently microcavities with anisotropic materials are shown to be able to create novel bands with non-zero local Berry curvature. The anisotropic refractive index of the cavity lay…
Fiber-pigtailing quantum-dot cavity-enhanced light emitting diodes
Lucas Rickert, Frederik Schröder, Timm Gao +3
We report on a process for the fiber-coupling of electrically driven cavity-enhanced quantum dot light emitting devices. The developed technique allows for the direct and permanent…
Switching off microcavity polariton condensate near the exceptional point
Yao Li, Xuekai Ma, Zaharias Hatzopoulos +3
Gain and loss modulation are ubiquitous in nature. An exceptional point arises when both the eigenvectors and eigenvalues coalesce, which in a physical system can be achieved by en…
Spiraling vortices in exciton-polariton condensates
Xuekai Ma, Yaroslav V. Kartashov, Tingge Gao +2
We introduce the phenomenon of spiraling vortices in driven-dissipative (non-equilibrium) exciton-polariton condensates excited by a non-resonant pump beam. At suitable low pump in…
Exciton interaction induced spin splitting in MoS monolayer
Yao Li, G. Li, Xiaokun Zhai +11
By pumping nonresonantly a MoS monolayer at K under a circularly polarized cw laser, we observe exciton energy redshifts that break the degeneracy between B excitons with…
Controllable high-speed polariton waves in a PT-symmetric lattice
Xuekai Ma, Yaroslav Y. Kartashov, Tingge Gao +1
Parity-time (PT) symmetry gives rise to unusual phenomena in many physical systems, presently attracting a lot of attention. One essential and non-trivial task is the fabrication a…
Direct measurement of polariton-polariton interaction strength in the Thomas-Fermi regime of exciton-polariton condensation
E. Estrecho, T. Gao, N. Bobrovska +12
Bosonic condensates of exciton polaritons (light-matter quasiparticles in a semiconductor) provide a solid-state platform for studies of non-equilibrium quantum systems with a spon…
Controlled ordering of topological charges in an exciton-polariton chain
T. Gao, O. A. Egorov, E. Estrecho +6
We demonstrate, experimentally and theoretically, controlled loading of an exciton-polariton vortex chain into a 1D array of trapping potentials. Switching between two types of vor…
Chiral modes at exceptional points in exciton-polariton quantum fluids
T. Gao, G. Li, E. Estrecho +10
We demonstrate generation of chiral modes -- vortex flows with fixed handedness in exciton-polariton quantum fluids. The chiral modes arise in the vicinity of exceptional points (n…
Spontaneous condensation of exciton polaritons in the single-shot regime
E. Estrecho, T. Gao, N. Bobrovska +9
Bose-Einstein condensate of exciton polaritons in a semiconductor microcavity is a macroscopically populated coherent quantum state subject to concurrent pumping and decay. Debates…
Talbot effect for exciton-polaritons
T. Gao, E. Estrecho, G. Li +8
We demonstrate, experimentally and theoretically, a Talbot effect for hybrid light-matter waves -- exciton-polariton condensate formed in a semiconductor microcavity with embedded…
Spin Selective Filtering of Polariton Condensate Flow
T. Gao, C. Antón, T. C. H. Liew +5
Spin-selective spatial filtering of propagating polariton condensates, using a controllable spin-dependent gating barrier, in a one-dimensional semiconductor microcavity ridge wave…
Optical control of spin textures in quasi-one-dimensional polariton condensates
C. Antón, S. Morina, T. Gao +7
We investigate, through polarization-resolved spectroscopy, the spin transport by propagating polariton condensates in a quasi one-dimensional microcavity ridge along macroscopic d…
Energy relaxation of exciton-polariton condensates in quasi-1D microcavities
C. Antón, T. C . H. Liew, G. Tosi +6
We present a time-resolved study of energy relaxation and trapping dynamics of polariton condensates in a semiconductor microcavity ridge. The combination of two non-resonant, puls…
Dynamics of a polariton condensate transistor switch
C. Anton, T. C. H. Liew, G. Tosi +6
We present a time-resolved study of the logical operation of a polariton condensate transistor switch. Creating a polariton condensate (source) in a GaAs ridge-shaped microcavity w…
Polariton Condensate Transistor Switch
T. Gao, P. S. Eldridge, T. C. H. Liew +5
A polariton condensate transistor switch is realized through optical excitation of a microcavity ridge with two beams. The ballistically ejected polaritons from a condensate formed…
Sculpting oscillators with light within a nonlinear quantum fluid
G. Tosi, G. Christmann, N. G. Berloff +5
Seeing macroscopic quantum states directly remains an elusive goal. Particles with boson symmetry can condense into such quantum fluids producing rich physical phenomena as well as…