1,721,040 research outputs found
Hysteresis in linearly polarized nonresonantly driven exciton-polariton condensates
No full textIt is shown that a condensate of microcavity exciton-polaritons exhibits bistability between its two orthogonal linearly polarized components for varying nonresonant excitation power. A non-Hermitian splitting of these components results in two parity-symmetric fixed-point solutions of opposite polarization, making up the hysteresis branches. These solutions correspond to the lowest threshold linearly polarized mode, which dominates at low pump powers, and a cross-polarized mode, which appears due to nonlinear pinning at higher excitation powers. The spin symmetry of the solutions extends the nonresonant bistable operation of polariton condensates to the entire equatorial plane of the Poincaré sphere. The results pave the way towards development of tailored bistable, linearly polarized, coherent sources of light
Dataset supporting the publication "Enhanced coupling between ballistic exciton-polariton condensates through tailored pumping".
No full textDataset for the paper entitled "Enhanced coupling between ballistic exciton-polariton condensates through tailored pumping" in Physical Review B.
The file "Dataset.zip" contains data to generate Figures 1-5 from the main text.</span
Data for Synchronization in optically-trapped polariton Stuart-Landau networks
No full textData for paper published in Physical Review B, entitled Synchronization in optically-trapped polariton Stuart-Landau networks. Dataset to contain data of figures 1,2,3,4,5,8 & 9.</span
Data for Screening nearest-neighbor interactions in networks of exciton-polariton condensates through spin orbit coupling
No full textData from numerical simulations used to create the figures in the paper Aristov, D., Sigurdsson, H., & Lagoudakis, P.G. (2022) Screening nearest-neighbor interactions in networks of exciton-polariton condensates through spin orbit coupling. Physical Review B.</span
Screening nearest-neighbor interactions in networks of exciton-polariton condensates through spin orbit coupling
No full textWe study the modification of the spatial coupling parameter between interacting ballistic exciton-polariton condensates in the presence of photonic spin-orbit coupling appearing from transverse electric-transverse magnetic (TE-TM) splitting in planar semiconductor microcavities. We propose a strategy to make the coupling strength between next-nearest neighbors stronger than between nearest neighbors, which inverts the conventional idea of the spatial coupling hierarchy between sites. Our strategy relies on the dominantly populated high-momentum components in the ballistic condensates which, in the presence of TE-TM splitting, lead to rapid radial precession of the polariton pseudospin. As a consequence, condensate pairs experience distance-periodic screening of their interaction strength, severely modifying their synchronization and condensation threshold solutions.</p
Dataset supporting an article 'Minor embedding with Stuart-Landau oscillator networks' published in Physical Review Research
No full textThis is the dataset for the figures of the journal article "Minor embedding with Stuart-Landau oscillator networks" in Physical Review Research.
All data is in the dataset.zip folder. Each file gives the x-y coordinate data for all or part of each subplot (as detailed in the README.txt file). The data are saved as text files containing comma-separated values.
The README.txt file gives a detailed description of each text file and the associated journal article. </span
Synchronization in optically trapped polariton Stuart-Landau networks
No full textWe demonstrate tunable dissipative interactions between optically trapped exciton-polariton condensates. We apply annular shaped nonresonant optical beams to both generate and confine each condensate to their respective traps, pinning their natural frequencies. Coupling between condensates is realized through the finite escape rate of coherent polaritons from the traps leading to robust phase locking with neighboring condensates. The coupling is controlled by adjusting the polariton propagation distance between neighbors. This permits us to map out regimes of both strong and weak dissipative coupling, with the former characterized by clear in-phase and antiphase synchronization of the condensates. With robust single-energy occupation governed by dissipative coupling of optically trapped polariton condensates, we present a system that offers a potential optical platform for the optimization of randomly connected XY Hamiltonians
Enhanced coupling between ballistic exciton-polariton condensates through tailored pumping
Full text linkWe propose a method to enhance the spatial coupling between ballistic
exciton-polariton condensates in a semiconductor microcavity based on available
spatial light modulator technologies. Our method, verified by numerically
solving a generalized Gross-Pitaevskii model, exploits the strong
nonequilibrium nature of exciton-polariton condensation driven by localized
nonresonant optical excitation. Tailoring the excitation beam profile from a
Gaussian into a polygonal shape results in refracted and focused radial streams
of outflowing polaritons from the excited condensate which can be directed
towards nearest neighbors. Our method can be used to lower the threshold power
needed to achieve polariton condensation and increase spatial coherence in
extended systems, paving the way towards creating extremely large-scale quantum
fluids of light
Data for Time-Delay Polaritonics
No full textExperimental data and numerical simulation results used to create the figures in the paper Töpfer, J.D., Sigurdsson, H., Pickup, L. & Lagoudakis, P. (2019). Time-Delay Polaritonics. Communications Physics.</span
Dataset for: Reservoir optics with exciton-polariton condensates
No full textDataset for paper entitled "Reservoir optics with exciton-polariton condensates" in Physical Review B.</span
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