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806 results for “cavities”
On-demand indistinguishable and entangled photons at telecom frequencies using tailored cavity designs
<p>Dataset of the publication "On-demand indistinguishable and entangled photons at telecom frequencies using tailored cavity designs" (<a href="http://https://doi.org/10.48550/arXiv.2303.13871">10.48550/arXiv.2303.13871</a>)</p> <p>Abstract:</p> <blockquote> <p>The biexciton-exciton emission cascade commonly used in quantum-dot systems to generate polarization entanglement yields photons with intrinsically limited indistinguishability.<br> In the present work we focus on the generation of pairs of photons with high degrees of polarization entanglement and simultaneously high indistinguishability. We achieve this goal by selectively reducing the biexciton lifetime with an optical resonator. We demonstrate that a suitably tailored circular Bragg reflector fulfills the requirements of sufficient selective Purcell enhancement of biexciton emission paired with spectrally broad photon extraction and two-fold degenerate optical modes. Our in-depth theoretical study combines (i) the optimization of realistic photonic structures solving Maxwell's equations from which model parameters are extracted as input for (ii) microscopic simulations of quantum-dot cavity excitation dynamics with full access to photon properties. We report non-trivial dependencies on system parameters and use the predictive power of our combined theoretical approach to determine the optimal range of Purcell enhancement that maximizes indistinguishability and entanglement to near unity values in the telecom C-band at 1550nm.</p> </blockquote>
Data and code associated with the paper 'Mode-Specific Coupling of Nanoparticle-on-Mirror Cavities with Cylindrical Vector Beams'
<p>Data and code associated with the following paper: <a href="https://doi.org/10.1021/acs.nanolett.3c00561">V. Vento et al, Nano Lett. 2023</a></p> <p>A thorough explanation of the experiment performed is available there.</p> <p>The name of each sub-folder and file in <strong>Maps_data_code.zip</strong> indicates the corresponding figure number ("FIG #") and the type of content ("raw_data", "data", "plot", "analysis", "calculation", "simulation").</p> <p>The Raman maps data are analyzed through the script <em>Raman_maps_analysis.m</em>. The photoluminescence maps data in the supplementary information are analyzed through the script <em>PL_maps_analysis.m.</em> </p> <p>Used softwares: Matlab R2021a, Python 3.9, Comsol Multiphysics 5.6</p> <p> </p>
Matrices for an acoustic cavity with poroelastic layer
<p>Matrices for a numerical model of an acoustic cavity equipped with a layer of poroelastic material.</p> <p>For usage see RUNME.m, RUNME.py and the <a href="http://modelreduction.org/index.php/Porous_absorber">MOR Wiki</a>.</p>
Supporting data for "Detection of single ions in a nanoparticle coupled to a fiber cavity"
<p>Data for Fig. 2b, 2d, 3 and 4 of the paper "Detection of single ions in a nanoparticle coupled to a fiber cavity"</p>
Receptor cavity-based screening reveals potential allosteric modulators of gonadotropin receptors in carp (Cyprinus carpio)
<p>The datasets include input files used for docking including the receptor models, docking grids and and ligand databases consisting of prepared ligand used in screening of potential allosteric modulators for carp FSHR and LHR. the original dataset were sourced from The compound libraries from <a href="https://enamine.net/compound-libraries">https://enamine.net/compound-libraries</a> and are free to access, downloaded and used as per the mentioned sites terms and conditions. The ligand Database given here are constructed and processed using the Phase module (Phase, Schrödinger, LLC, New York, NY, 2021.). The dataset also includes .pdb files of the docked ligands. </p>
Research data of "Quantum resonant optical bistability with a narrow atomic transition: bistability phase diagram in the bad cavity regime"
<p>The data set includes the matlab programs, measured data and drawings used for the figures in D Rivero et al 2023 New J. Phys. 25 093053</p>
SIS Versus Office Hysteroscopy for Uterine Cavity Evaluation Prior to IVF
ClinicalTrials.gov study NCT04415489. IPD Sharing: YES. Countries: 1. Publications: 1.
Bee Tracker – an open-source machine-learning based video analysis software for the assessment of nesting and foraging performance of cavity-nesting solitary bees
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Data from: Metabarcoding of trap nests reveals differential impact of urbanization on cavity-nesting bee and wasp communities
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Data from: Cavities and the demographic performance of tropical rainforest trees
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Rural children know cavity-nesting birds of the Atlantic Forest but may underappreciate their critical habitat
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Ecosystem engineers show variable impacts on habitat availability for cavity nesters in South American temperate forests
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Secondary Amazon rainforest partially recovers tree cavities suitable for nesting birds in 18–34 years
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Dataset related to the publication "Nanocrystalline silicon optomechanical cavities", DOI: 10.1364/OE.26.009829
<p>This folder contains the raw data from which the graphs in paper "Nanocrystalline silicon optomechanical cavities", DOI: 10.1364/OE.26.009829, have been obtained.</p>
Data for "Cavity electromechanics with parametric mechanical driving"
<p>Data as plotted in the Main Paper and Supplementary Material. Raw data of the main paper. In addition some python and labview analysis and fitting scripts, as well as origin files used for processing and plotting.</p>
Dataset related to the publication "Optical modulation of coherent phonon emission in optomechanical cavities", DOI: 10.1063/1.5040061
<p>This folder contains the raw data from which the graphs in paper "Optical modulation of coherent phonon emission in optomechanical cavities", DOI: 10.1063/1.5040061, have been obtained.</p> <p> </p>
Data from: Entangling the vibrational modes of two massive ferromagnetic spheres using cavity magnomechanics
<p>Source data for Figures 2 and 3.</p>
Data from: Sound settlement: noise surpasses land cover in explaining breeding habitat selection of secondary cavity-nesting birds
Birds breeding in heterogeneous landscapes select nest sites by cueing in on a variety of factors from landscape features and social information to the presence of natural enemies. We focus on determining the relative impact of anthropogenic noise on nest site occupancy, compared to amount of forest cover, which is known to strongly influence the selection process. We examine chronic, industrial noise from natural gas wells directly measured at the nest box as well as site-averaged noise, using a well-established field experimental system in northwestern New Mexico. We hypothesized that high levels of noise, both at the nest site and in the environment, would decrease nest box occupancy. We set up nest boxes using a geospatially paired control and experimental site design and analyzed four years of occupancy data from four secondary cavity-nesting birds common to the Colorado Plateau. We found different effects of noise and landscape features depending on species, with strong effects of noise observed in breeding habitat selection of Myiarchus cinerascens, the Ash-throated Flycatcher, and Sialia currucoides, the Mountain Bluebird. In contrast, the amount of forest cover less frequently explained habitat selection for those species or had a smaller standardized effect than the acoustic environment. Although forest cover characterization and management is commonly employed by natural resource managers, our results show that characterizing and managing the acoustic environment should be an important tool in protected area management.
Data from: Fitness consequences of interspecific nesting associations among cavity-nesting birds
Interspecific aggregations of prey may provide benefits by mitigating predation risk, but they can also create costs if they increase competition for resources or are more easily detectable by predators. Variation in predation risk and resource availability may influence the occurrence and fitness effects of aggregating in nature. Yet, tests of such possibilities are lacking. Cavity nesting birds provide an interesting test case. They compete aggressively for resources and experience low nest predation rates, which might predict dispersion, but we found they commonly aggregate by sharing nest trees across 19 years of study. Tree sharing was more common when aspen were more abundant and somewhat more common in years with higher nest predation risk. Nest success was higher in shared trees when nest predation risk was higher than average. Ultimately, the costs and benefits of aggregating (nest tree sharing) varied across years and we outline hypotheses for future studies.
Exploring dynamical phase transitions with a Cavity-QED platform
<p>Atom-light interactions in optical cavities provide a platform for investigating many-body quantum physics in controlled environments. In particular, they have been proposed for the realization of collective quantum spin models with tunable long-range interactions. Besides the investigation of the rich steady-state phases that can arise due to the interplay between atom-light interactions and dissipation from the cavity, one opportunity offered by these systems is the study of out-of-equilibrium dynamical phases of matter precluded from existence at equilibrium . Moreover, these phases can display intriguing universal behaviors akin to standard equilibrium phase transitions. Here, we report the observation of distinct dynamical phases of matter in a nearly unitary implementation of the collective XY spin model with transverse and longitudinal fields simulated via an ensemble of ∼10<sup>6</sup> <sup>88</sup>Sr atoms. The unique properties of our cavity-QED platform allow us to probe thedependence of the associated dynamical phase transitions on parameter space, system size and initial state. In the spirit of quantum simulation our observations can be linked to similar dynamical phases featured in a range of related scystems, including the Josephson effect in superfluid helium , coupled atomic and solid-state polariton condensates, with complementary types of control including the magnitude and sign of Hamiltonian parameters. Moreover, our system offers potential for the generation of metrologically useful entangled states in optical transitions, which can enable real metrological gains via quantum enhancement in state-of-the-art atomic clocks.</p>
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.