Data supporting the paper "Trapping of ultrashort pulses in non-degenerate parametric conversion"

The dataset consists of several MATLAB data files (*.mat), corresponding to the figures in the paper. The naming of the files is self-explanatory. Each MATLAB file contains all variables (as arrays) used in each plot. For 2D plots, there are separate 1D arrays for x- and y- coordinates, i.e., if there are several lines in a plot, there will be several corresponding variables for the y-coordinates of each line. For surface plots, all variables are stored as 2D arrays

Dataset for: "Carrier-resolved real-field theory of multi-octave frequency combs"

This dataset provides supplementary materials related to the article, "Carrier-resolved real-field theory of multi-octave frequency combs"," published in Optica. The dataset includes raw electric field distributions obtained from simulations based on the equations outlined in the manuscript. Additionally, the dataset contains a comprehensive list of physical parameters utilized in the simulations. Raw .fig Matlab files are also supplied for the visual data presented in the manuscript to improve transparency. For further information, please consult the included Readme file

Dataset for "Soliton dynamics in lithium niobate nano-waveguides"

This dataset contains simulated data and data from analytic predictions of soliton propagation in lithium niobate nano-waveguides. The data is grouped into four folders: two of these contain animations of simulated soliton and pulse propagation, the other two contain simulated and predicted data for soliton propagation under the influence of the Raman effect. These data are provided to aid the understanding of thesis and are in addition to other datasets produced for the publication of the work previously (see documentation section for more info)

Data set for "Case study of developing an affordable undergraduate observatory" and image of M51 galaxy

This data set contains the raw fits files needed to produce an astrophotograph of Galaxy M51 as shown in the associated paper. It includes bias frames, fark-frames, flat-frames, and exposures of M51 taken in LRGB filters. See individual file descriptions for LRGB wavelength ranges and fits file headers for exposure times etc

Data for 'Efficient characterisation of large deviations using population dynamics'

We have produced a research paper 'Efficient characterisation of large deviations using population dynamics' investigating the nature of rare events in the SSEP. We study activity distribiutions of this process on a one dimensional lattice with periodic boundary conditions. The process is simulated using a C++ code and parallelisation is used to increase computational efficiency. The two parallelisation methods that we use are OpenMP and MPI and these are stored in a repository in this data set. The codes are designed such that they can be used to study rare events in other processes and study observables other than activity. The dataset includes .txt and .mat files output by the C++ files and by the .m files used for processing. Further .m MATLAB files are used to produce the data and tables within the paper

Data for 'Efficient characterisation of large deviations using population dynamics'

We have produced a research paper 'Efficient characterisation of large deviations using population dynamics' investigating the nature of rare events in the SSEP. We study activity distribiutions of this process on a one dimensional lattice with periodic boundary conditions. The process is simulated using a C++ code and parallelisation is used to increase computational efficiency. The two parallelisation methods that we use are OpenMP and MPI and these are stored in a repository in this data set. The codes are designed such that they can be used to study rare events in other processes and study observables other than activity. The dataset includes .txt and .mat files output by the C++ files and by the .m files used for processing. Further .m MATLAB files are used to produce the data and tables within the paper

Data for paper: Regulating the femtosecond excited-state lifetime of a single molecule

These data were collected by scanning tunnelling microscopy and concern the rate of manipulation of the chemisorbed toluene molecule on the Si(111)-7x7 surface. The details of this research are presented in the associated paper. Here we house the individual data points that are displayed in the work

Data for paper: Regulating the femtosecond excited-state lifetime of a single molecule

These data were collected by scanning tunnelling microscopy and concern the rate of manipulation of the chemisorbed toluene molecule on the Si(111)-7x7 surface. The details of this research are presented in the associated paper. Here we house the individual data points that are displayed in the work

Supporting data for article "Strain-induced phonon shifts in tungsten disulfide nanoplatelets and nanotubes"

The relationship between structure and properties has been followed for different nanoscale forms of tungsten disulfide (2H-WS2) namely exfoliated monolayer and few-layer nanoplatelets, and nanotubes. The similarities and differences between these nanostructured materials have been examined using a combination of optical microscopy, scanning and high-resolution transmission electron microscopy (SEM and HRTEM) and atomic force microscopy (AFM). Photoluminescence (PL) and Raman spectroscopy have also been used to distinguish between monolayer and few-layer material. Strain induced phonon shifts have been followed from the changes in the positions of the A1g and E2g1 Raman bands during uniaxial deformation. This has been modelled for monolayer using density functional theory (DFT) with excellent agreement between the measured and predicted behaviour. It has been found that as the number of WS2 layers increases for few-layer crystals or nanotubes, the A1g mode hardens whereas the E2g1 mode softens. This is believed to be due to the A1g mode, which involves out of plane atomic movements, being constrained by the increasing number of WS2 layers whereas easy sliding reduces stress transfer to the individual layers for the E2g1 mode, involving only in-plane vibrations. This finding has enabled the anomalous phonon shift behaviour in earlier pressure measurements on WS2 to be resolved, as well as similar effects in other transition metal dichalcogenides, such as molybdenum disulfide (MoS2), to be explained. This dataset contains supporting data for the density functional theory calculations which were the part of this work carried out at the University of Bath.The two zipped files contain all the input files supplied to the Quantum Espresso package for the two cases of pure hydrostatic strain and pure shear strain

Supporting data for article "Strain-induced phonon shifts in tungsten disulfide nanoplatelets and nanotubes"

The relationship between structure and properties has been followed for different nanoscale forms of tungsten disulfide (2H-WS2) namely exfoliated monolayer and few-layer nanoplatelets, and nanotubes. The similarities and differences between these nanostructured materials have been examined using a combination of optical microscopy, scanning and high-resolution transmission electron microscopy (SEM and HRTEM) and atomic force microscopy (AFM). Photoluminescence (PL) and Raman spectroscopy have also been used to distinguish between monolayer and few-layer material. Strain induced phonon shifts have been followed from the changes in the positions of the A1g and E2g1 Raman bands during uniaxial deformation. This has been modelled for monolayer using density functional theory (DFT) with excellent agreement between the measured and predicted behaviour. It has been found that as the number of WS2 layers increases for few-layer crystals or nanotubes, the A1g mode hardens whereas the E2g1 mode softens. This is believed to be due to the A1g mode, which involves out of plane atomic movements, being constrained by the increasing number of WS2 layers whereas easy sliding reduces stress transfer to the individual layers for the E2g1 mode, involving only in-plane vibrations. This finding has enabled the anomalous phonon shift behaviour in earlier pressure measurements on WS2 to be resolved, as well as similar effects in other transition metal dichalcogenides, such as molybdenum disulfide (MoS2), to be explained. This dataset contains supporting data for the density functional theory calculations which were the part of this work carried out at the University of Bath.The two zipped files contain all the input files supplied to the Quantum Espresso package for the two cases of pure hydrostatic strain and pure shear strain