Research data supporting "An optical Fourier transform coprocessor with direct phase determination"

Abstract

This directory contains data pertaining to the paper ‘An optical Fourier transform coprocessor with direct phase determination,’ by Macfaden, Gordon & Wilkinson (2017). The data is organised with reference to the figures in the paper. Descriptions of these data files are as follows. FIG 2: This figure pertains to a characterised two-pass twisted nematic SLM system which is used to impose a certain optical modulation. The exercise of characterising, designing and optimising this system is its own paper (Characterisation, design, and optimisation of a two-pass twisted nematic liquid crystal spatial light modulator system for arbitrary complex modulation, Macfaden & Wilkinson (2016)). The associated data is: Macfaden, A. J., & Wilkinson, T. D. Research data supporting Characterisation, design, and optimisation of a two-pass twisted nematic liquid crystal spatial light modulator system for arbitrary complex modulation [Dataset]. https://doi.org/10.17863/CAM.5955 -Figure2c.xls This file includes the specific data shown in Figure2c. Different sheets contain the different data described in the legend of Figure2c. FIG 3: -Figure3.xls This function contains, in separate worksheets, the data shown in the panels of Figure 3. The coordinates used in these figures are simply sequential indices, and as such the data is number grids. FIG 4: This figure has many parts. The contents is sub-divided between different files. -Figure4a.xls This figure contains the initial conditions and Fourier domain representation (complex amplitude). -Figure4b.xls This figure contains the detailed figures for t=t_1. Specifically, the input, decomposed real and complex and even and odd components, the transforms of these and recombined function (both computed and optically evaluated). -Figure4c.xls This figure contains the Fourier domain representation of the thermal distribution at subsequent times, along with the optical and discrete Fourier transform - Visualisation 1.avi This is the visualisation of cooling over many other times, described in the Figure 4 caption. - Visualisation 2.avi This is a temporally smoothed version of Visualisation 1.avi. This shows the underlying physical process more clearly by reducing the effect of some of the experimental optical noise.