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750 results for “coherence”
800G Coherent FSO Demonstration: Datasets and Post-Processing Routines
<p>This repository includes a set of experimental data and post-processing routines for the study of ultra-high capacity free-space optics (FSO) systems enabled coherent optical fiber transceivers operating at bit rates of 800 Gbps and above. </p> <p>The repository is organized into the following subfolders:<br> i) <strong>800G experiment</strong>: includes the system performance data (NGMI, SNR, etc) obtained from a 92 Gbaud coherent optical transmission over an outdoor 42 m FSO link under varying weather conditions during 48 hours;<br> ii) <strong>atmospheric turbulence</strong>: includes the raw measured received optical power and post-processing routines to analyze the impact of atmospheric turbulence during a 1-hour period at a sample rate of 10 kHz; <br> iii) <strong>channel estimation</strong>: includes the implementation of an adaptive channel estimator driven by the least mean squares (LMS) or recursive least squares (RLS) algorithms, enabling a highly accurate prediction of the channel state in an outdoor FSO link;<br> iv) <strong>optical beam alignment</strong>: includes the post-processing routines that exploit the sensitivity of an FSO system towards pointing errors using direct air-to-fiber coupling.</p>
Raw data for: Coherent supercontinuum generation in all-normal dispersion Si3N4 waveguides
<p>This document includes the raw data and Matlab/Python scripts to post-process data and plot the figures included in the paper "Coherent supercontinuum generation in all-normal dispersion Si3N4 waveguides".</p>
Dataset for "Enhanced charge density wave coherence in a light-quenched high temperature superconductor"
<p>Dataset for "Enhanced charge density wave coherence in a light-quenched high temperature superconductor"</p>
A single hole with enhance coherence in natural silicon
<p>A single hole with enhance coherence in natural silicon</p>
Figure data sets for the paper "Coherent optical-microwave interface for manipulation of low-field electronic clock transitions in 171Yb3+:Y2SiO5"
<p>Figure data sets.</p>
In Situ Volumetric Imaging and Analysis of FRESH 3D Bioprinted Constructs Using Optical Coherence Tomography (Data and 3D models)
<p>These files contain 3D models and reconstructions of the 3D printed models after OCT imaging of the brain stem, circle of willis, kidney, vestibular apparatus, mixing network, and resolution text. These are from the journal article "In Situ Volumetric Imaging and Analysis of FRESH 3D Bioprinted Constructs Using Optical Coherence Tomography" published in <em>Biofabrication </em>(2022).</p>
Figure files for Coherent spin-valley oscillations in silicon
<p>This repository contains .fig (matlab) files corresponding to the figures in Coherent spin-valley oscillations in silicon.</p>
Computational data for "Measurement of Coherent Vibrational Dynamics with X-ray Transient Absorption Spectroscopy Simultaneously at the Carbon K- and Chlorine L$_{2,3}$- Edges"
<p>Contains:<br><br>1. Code for and results from, time-dependent Schroedinger equation simulations for the molecular normal modes under strong electric fields inducing impulsive stimulated Raman processes.</p> <p>2. Molecular orbitals obtained from ROKS calculations for the C 1s and Cl 2p excited states (with spin-free one-electron X2C). </p>
The supporting data and code for research "Quantification of Entanglement and Coherence with Purity Detection"
<p>The supporting data and code for research "Quantification of Entanglement and Coherence with Purity Detection"</p>
Spatio-temporal Characterization of Coherent Structures in Simulated Tropical Cyclone Boundary Layer
<p>Jupyter-notebooks to read and analyze processed outputs from three Tropical Cyclone (TC) simulations (CONTROL, LOWOR, and NONPARAM) and plot figures. The datasets are large and can be made available by the authors upon request.</p>
The superconducting clock-circuit: Improving the coherence of Josephson radiation beyond the thermodynamic uncertainty relation
Open the record for dataset details and reuse information.
Emergent coherent modes in nonlinear magnonic waveguides detected at ultrahigh frequency resolution
<p>Raw data and Python code for the manuscript "Emergent coherent modes in nonlinear magnonic waveguides detected at ultrahigh frequency resolution". All data files and source code are provided in a zip file. .ipynb file is a python jupyter notebook file which contains all the source codes to generate all the figures.</p> <p>Abstract: Nonlinearity of dynamic systems plays a key role for neuromorphic computing which is expected to reduce the ever-increasing power consumption of machine learning and artifical intelligence applications. For spin waves (magnons), nonlinearity combined with phase coherence is the basis of phenomena like Bose-Einstein condensation, frequency combs, and pattern recognition in neuromorphic computing. Yet, the broadband electrical detection of these phenomena with high frequency resolution remains a challenge. Here, we demonstrate the generation and detection of phase-coherent nonlinear magnons in an all-electrical GHz probe station based on coplanar waveguides connected to a vector network analyzer which we operate in a frequency-offset mode. Making use of an unprecedented frequency resolution, we resolve the nonlocal emergence of a fine structure of propagating nonlinear magnons, which sensitively depends on both power and a magnetic field. These magnons are shown to maintain coherency with the microwave source while propagating over macroscopic distances. We propose a multi-band four magnon scattering scheme which is in agreement with the field-dependent characteristics of coherent nonlocal signals in the nonlinear excitation regime. Our findings are key to enable the seamless integration of nonlinear magnon processes into high-speed microwave electronics and to advance phase-encoded information processing in magnonic neuronal networks.</p>
Data accompanying "High order coherent communications using mode-locked dark-pulse Kerr combs from microresonators"
<p>This dataset contains figure data for the publication "High order coherent communications using mode-locked dark-pulse Kerr combs from microresonators".</p> <p>To complement the main transmission results in the paper, the figure 3c subfolder also includes the related raw measurement data as well as the digital signal processing (DSP) code that is required to calculate the bit error ratios. The program code is distributed under a GPLv3 license.</p>
Reaction times of spatially coherent and incoherent signals in a word recognition task
<p>Using conventional sound design, the audio signal in virtual reality applications is often rendered as a static stereophonic signal. It is accompanied by a visual signal that allows for interactive behavior such as looking around. In the current test, the influence of spatial offset between the audio and visual signals is investigated using reaction time measurements in a word recognition task. The audio-visual offset is introduced by a video presented at horizontal offset angles between 21, accompanied with a static central audio. Measurements are compared to reaction times from a test where both audio and visual signal are presented with the same angle. Results show that audio-visual offsets between 10 and 20 cause significant differences in reaction time compared to spatially matched presentation.</p> <p>This dataset provides the files used for creating these results, such as video files, MaxMSP patches, Analyses in MATLAB</p>
Perceptual thresholds of audio-visual spatial coherence for a variety of audio-visual objects
<p>Dataset accompanying the paper "Perceptual thresholds of audio-visual spatial coherence for a variety of audio-visual objects", published at the AES International Conference on Audio for Virtual and Augmented Reality, Remond, WA, USA</p>
Limits of perceived audio-visual spatial coherence as defined by reaction time measurements
<p>Data accompanying the paper "Limits of perceived audio-visual spatial coherence as defined by reaction time measurements" published in Frontiers in Neuroscience, May 2019.</p>
Quantitative measures of corneal transparency, derived from objective analysis of depth-resolved corneal images, demonstrated with full-field optical coherence tomographic microscopy
<p>Supporting data for: <a href="https://zenodo.org/record/2579947">Quantitative measures of corneal transparency, derived from objective analysis of depth-resolved corneal images, demonstrated with full-field optical coherence tomographic microscopy</a></p>
Seconds-scale coherence on an optical clock transition in a tweezer array (publication data)
<p>Accompanying data for<em> Seconds-scale coherence on an optical clock transition in a tweezer array.</em></p>
Mutual control of coherent spin waves and magnetic domain walls in a magnonic device
<p>Data shown in the main text and the supplementary materials of Mutual control of coherent spin waves and magnetic domain walls in a magnonic device.</p>
FIGURE 1. Porpax elwesii and Rhomboda lanceolata. A–F. Porpax elwesii. A. Plants. B. Flower. C. Dorsal sepal. D. Coherent lateral sepals. E. Petal. F. Lip. G–L. Rhomboda lanceolata. G. Plants. H. Inflorescence. I. Perianth. J. Column. K, L in An updated checklist of Orchidaceae for China, with two new national records
FIGURE 1. Porpax elwesii and Rhomboda lanceolata. A–F. Porpax elwesii. A. Plants. B. Flower. C. Dorsal sepal. D. Coherent lateral sepals. E. Petal. F. Lip. G–L. Rhomboda lanceolata. G. Plants. H. Inflorescence. I. Perianth. J. Column. K, L. Callus.
ScienceDex guides
Understand access before you commit
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.