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89 results for “Plasmonics”
Continuous Flow Synthesis and Simulation-Supported Investigation of Tunable Plasmonic Gold Patchy Nanoparticles
<p>This is the dataset for the following manuscript "Continuous Flow Synthesis and Simulation-Supported Investigation of Tunable Plasmonic Gold Patchy Nanoparticles".</p> <p>Abstract</p> <p><span>Plasmonic nanoparticles have intriguing optical properties which make them suitable candidates for sensing or theranostic applications. Anisotropic patchy particles, where metal is locally deposited on the surface of a core particle, exhibit plasmon resonances that can be specifically adjusted for these applications. However, many existing synthesis routes are complex, yield too little material, or provide particles with limited optical tunability. In this work, we present a simple and scalable continuous flow synthesis of gold-on-polystyrene patchy particles with widely adjustable optical properties. By increasing the chloride concentration in the electroless deposition of gold, we slow down the redox reduction kinetics and obtain a dense patch morphology as well as a reduced nucleation rate. The latter is counteracted by introducing a low-level seeding approach where a small number of gold nanocrystals heterocoagulate with the core particles prior to patch growth. Seeding and patch growth are performed in a continuous flow set-up with two T-shaped milli-mixers. The resulting patchy particle samples exhibit a tunable dipolar plasmon peak between 600 nm and 1100 nm. We also investigate the structure-property relationship for our gold patchy particles using Finite Element Method simulations. After identifying a suitable patch shape model, we elucidate the influence of individual geometric parameters on the optical properties and show that the relationship holds true for a large range of patch coverages. Finally, we apply the relationship to explain the time-dependent change in the optical properties of as-synthesized patches by correlating it with the patch shape transformation revealed by electron microscopy.</span></p> <p> </p> <p>The uploaded data are sorted by figure.</p>
Experimental data supporting the paper "Fluorescence from a single-molecule probe directly attached to a plasmonic STM tip"
<p>Experimental STM, STS and STML data studying the fluorescent behaviour of a PTCDA molecule attached to the metallic apex of a scanning tunneling microscope.</p> <p> </p> <p>Treated source data of all Figures included in the publication.</p>
Data associated with "Imaging and Simulation of Surface Plasmon Polaritons on Layered 2D MXenes"
<p>Data and code for "Imaging and Simulation of Surface Plasmon Polaritons on Layered 2D MXenes"<br>Janek Rieger, Atreyie Ghosh, Joseph L. Spellberg, Calvin Raab, Aishani Mohan, Prakriti P. Joshi, Sarah B. King</p>
A Deep Learning Approach to the Forward Prediction and Inverse Design of Plasmonic Metasurface Structural Color - Raw Data
<p>Reflection spectra of PDMS - Al nanorod metamaterials were collected using LUMERICAL FDTD simulations. PDMS material properties were defined using a refractive index of 1.41 and Al material properties were defined using frequency selective permittivities from the handbook of Palik. A total of 4620 structures were simulated, sweeping the following dimension parameters:</p> <ul> <li>Aluminium thickness (t)</li> <li>Pillar height (h)</li> <li>Pillar diameter (d)</li> </ul> <p>Reflectance spectra were converted into CIE 1931 chromaticity values (x,y). This dataset is comprehensive and allows for the development of deep learning models for the forward and inverse design of the given metamaterial structure as detailed in the associated manuscript. The associated manuscript and supporting documentation provide extensive details of data collection and processing methods.</p> <p> </p>
Raw Data for manuscript published at Nanomaterials, entitled: Asymmetrical Plasmon Distribution in Hybrid AuAg Hollow/Solid Coded Nanotubes
<p>.dm3 TEM, STEM and EELS raw data</p>
Data for "Electron cooling in graphene enhanced by plasmon-hydron resonance"
<p>This is the data associated with the paper "Electron cooling in graphene enhanced by plasmon-hydron resonance" available on ArXiv at https://arxiv.org/abs/2301.05095. </p>
Time-Resolved Plasmon-Assisted Generation of Arbitrary Optical-Vortex Pulses - Supporting Information - Trajectories
<p>We provide videos of trajectories for a test charge, bound by Lennard-Jones potential. First video, titled "Plane Wave Trajectory " refers to the particle under the effect of a plane wave pulse. The other video , titled "Emitter Trajectory" refers to the particle affected by an orbital angular momentum carrying pulse.</p> <p>These videos are supplementary materials for the article titled "Time-Resolved Plasmon-Assisted Generation of Arbitrary Optical-Vortex Pulses".</p>
Original data for "Experimental signatures of the transition from acoustic plasmon to electronic sound in graphene"
<p>This repository contains the original SNOM data and fits to them used in "Experimental signatures of the transition from acoustic plasmon to electronic sound in graphene" by D. Barcons Ruiz et al.<br> - The Raw_data folder contains the original scans recorded with a neaSNOM (neaspec Gmbh) microscope for the two devices in .dump format. <br> These data are easily accesible with Gwyddion. <br> The first part of the filename indicates the date of acquisition and the scanning conditions.<br> The suffix meaning of the individual scans within the raw data folders is:<br> - First element:<br> CT: topography<br> MX: X-harmonic of the mechanical signal (piezo)<br> BX: X-harmonic of the photocurrent signal<br> - Second element:<br> B/F: Backwards/Forward scans<br> - Third element:<br> abs: absolute value<br> arg: phase (-pi to pi)<br> <br> Ex:<br> 2022-02-02_10-48-16_2D-scan_4.25THz_GRp0.1V_GLsweep_m3Vtop1V_B1-B-abs.dump<br> 2022-02-02: date<br> 10-48-16: time<br> 2D-scan: scan type<br> 4.25THz: laser freq.<br> GRp0.1V_GLsweep_m3Vtop1V: scan conditions<br> B1-B-abs: 0th harmonic of the photocurrent signal, backwards trace, absolute value<br> <br> - The folder Figure2 contains the example traces extracted from the scans and shown in Fig.2 of the paper, and the fits to the optical signal, for both device 1 and 2.</p> <p>- The folder Figure3 contains the parameters obtained from the fitting of the plasmon fringes realizad as described in the Supplementary Information for both devices.<br> The real part of the plasmon wavevector is used to calculate the plasmon velocity data appearing in Fig.3 A-B of the paper and constitutes the most important dataset.<br> For every doubt on how to read or interpret these data please refer to the corresponding authors of the paper: <br> Prof. F.H.L. Koppens (frank.koppens@icfo.eu), <br> Dr. Iacopo Torre (iacopo.torre@icfo.eu).</p>
Plasmonic Photothermal and Stem Cell Therapy of Atherosclerosis Versus Stenting
ClinicalTrials.gov study NCT01436123. IPD Sharing: Not stated. Countries: 2. Publications: 1.
Applications of machine learning tools for ultra-sensitive detection of lipoarabinomannan with plasmonic grating biosensors in clinical samples of tuberculosis
Open the record for dataset details and reuse information.
Vacuum Rabi splitting of a dark plasmonic cavity mode revealed by fast electrons_exterimental dataset
<p>This file contains the raw unprocessed experimental data for the results published in Ora Bitton et al., Vacuum Rabi splitting of a dark plasmonic cavity mode revealed by fast electrons, <em>Nat Commun</em> <strong>11, </strong>487 (2020). </p>
Independent engineering of individual plasmon modes in plasmonic dimers with conductive and capacitive coupling_experimental dataset
<p>This file contains the raw unprocessed experimental data for the results published in Křápek et al., <strong>Independent engineering of individual plasmon modes in plasmonic dimers with conductive and capacitive coupling</strong>, Nanophotonics, Volume <strong>9</strong>, Issue 3, Pages 623–632. . </p>
Effect of deposition angle on fabrication of plasmonic gold nanocones and nanodiscs_experimetal dataset
<p>This file contains the raw unprocessed experimental data for the results published in Liška et al., Effect of deposition angle on fabrication of plasmonic gold nanocones and nanodiscs, Microelectronic Engineering, Volume 228, 1 May 2020, 111326. </p> <p>. </p>
The effect of gold quantum dots/grating-coupled surface plasmons in inverted organic solar cells
<p><span>We studied the effect of gold quantum dots (AuQDs)/grating-coupled surface plasmon resonance (GC-SPR) in inverted organic solar cells (OSCs). AuQDs are located within a GC-SPR evanescent field in inverted OSCs, indicating an interaction between GC-SPR and AuQDs' quantum effects, subsequently giving rise to improvement in the performance of inverted OSCs. The fabricated solar cell device comprises an ITO</span><span>/</span><span>TiO<sub>2</sub></span><span>/</span><span>P3HT</span><span>:</span><span>PCBM</span><span>/</span><span>PEDOT</span><span>:</span><span>PSS</span><span>:</span><span>AuQD</span><span>/</span><span>silver grating structure</span><span>. </span><span>The AuQDs were loaded into a hole transport layer </span><span>(</span><span>PEDOT</span><span>:</span><span>PSS)</span> <span>of the inverted OSCs to increase absorption in the near</span><span>-</span><span>ultraviolet (UV) light region and to emit visible light into the neighboring photoactive layer, thereby achieving light-harvesting improvement of the device</span><span>. </span><span>The grating structures were fabricated on P3HT</span><span>:</span><span>PCBM layers using a nanoimprinting technique to induce GC-SPR</span> <span>within the inverted OSCs</span><span>. </span><span>The AuQDs incorporated within the strongly enhanced GC-SPR evanescent electric field on metallic nanostructures in the inverted OSCs improved the short</span><span>-</span><span>circuit current and the efficiency of photovoltaic devices</span><span>. </span><span>In comparison with the reference OSC and OSCs with only green AuQDs or only metallic grating, the developed device</span> <span>indicates enhancement of up to</span> <span>16%</span> <span>power conversion efficiency. This indicates that our light management approach allows for greater light utilization of the OSCs because of the synergistic effect of G</span><span>-</span><span>AuQDs and GC-SPR.</span></p>
Data from: Systematic study of the surface plasmon resonance signals generated by cells for sensors with different characteristic lengths
The objectives of this study were to establish an in-depth understanding of the signals induced by mammalian cells in surface plasmon resonance (SPR) sensing. To this end, two plasmonic structures with different propagation and penetration distances were used: conventional surface plasmon resonance and long-range surface plasmon resonance. Long-range SPR showed a lesser sensitivity to the absolute number of round cells but a greater resolution due to its very narrow spectral dip. The effect of cell spreading was also investigated and the resonance angle of long-range SPR was mostly insensitive unlike in the conventional SPR counterpart. Experimental data was compared with suitable models used in the SPR literature. Although these simple averaging models could be used to describe some of the experimental data, important deviations were observed which could be related to the fact that they do not take into consideration critical parameters such as plasmon scattering losses, which is particularly crucial in the case of long-range SPR structures. The comparison between conventional and long-range SPR for cellular schemes revealed important fundamental differences in their responses to the presence of cells, opening new horizons for SPR-based cell assays. From this study, long-range SPR is expected to be more sensitive towards both the detection of intracellular events resulting from biological stimulation and the detection of microorganisms captured from complex biological samples.
Source Data for "Atomic-Precision Control of Plasmon-Induced Single-Molecule Switching in a Metal-Semiconductor Nanojunction" and Supplementary Information
Open the record for dataset details and reuse information.
Dataset for Label-free Surface Enhanced Raman Scattering (SERS) on Centrifugal Silver Plasmonic Paper (CSPP): a novel methodology for unprocessed biofluids sampling and analysis.
<p>This dataset contains all the spectra used in "Label-free Surface Enhanced Raman Scattering (SERS) on Centrifugal Silver Plasmonic Paper (CSPP): a novel methodology for unprocessed biofluids sampling and analysis". Data are available in 2 different formats:</p> <p>- a compressed archive ("Spectra.zip") with 5 folders ("Figure 1-5”) containing all the *.txt files used to generate the 5 figures in the original paper (1 file = 1 spectrum).</p> <p>- 5 single CSV files (“Figure-X_all-spectra-and-metadata.csv”) with all the spectra and metadata relative to a specific figure. The data are structured as follow, with each row being 1 spectrum, followed by metadata.</p>
Raw plasmon ruler data of conformational dynamics of Hsp90
<p>Four time series from Plasmon ruler experiments<br>time resolution 0.1 s.<br>total length 6 h<br>Hsp90 concentration 240 pM<br>First analyzed and published 2018 in: https://pubs.acs.org/doi/10.1021/acs.nanolett.8b03342</p> <p>2024 analyzed for memory in conformational dynamics in: https://arxiv.org/abs/2404.16799</p>
Dataset for Enhanced Photoelectrochemical Nitrogen Reduction to Ammonia by a Plasmon-Active Au Grating Decorated with gC3N4@MoS2 Heterosystem and Plasmon-Active Nanoparticles
<div> <p>This is a dataset for a paper "Enhanced Photoelectrochemical Nitrogen Reduction to Ammonia by a Plasmon-Active Au Grating Decorated with gC3N4@MoS2 Heterosystem and Plasmon-Active Nanoparticles". All details about the data are included in the readme file.</p> <p> </p> </div> <h2></h2>
Mechanically Tunable Lattice-Plasmon Resonances by Templated Self-Assembled Superlattices for Multi- Wavelength Surface-Enhanced Raman Spectroscopy
<p>Related publication: Charconnet, M; Kuttner, C; Plou, J; Garcia-Pomar, JL; Mihi, A; Liz-Marzan, LM; Seifert, A. Mechanically Tunable Lattice-Plasmon Resonances by Templated Self-Assembled Superlattices for Multi-Wavelength Surface-Enhanced Raman Spectroscopy. <em>Small Methods</em> 2021, 2100453. 10.1002/smtd.202100453</p>
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
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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.