Data for: Distance calibration via Newton's rings in yttrium lithium fluoride whispering gallery mode resonators

<p>Dataset of Newton&#39;s rings images captured through the short face of a trapezoidal prism with a whispering gallery mode resonator positioned behind the prism. Each file corresponds to an applied piezo voltage over a voltage sweep decreasing in voltage steps of 0.1V (file names multiplied by 10). Both image data and oscilloscope data are included.&nbsp;Runs 18-27 &amp; 42-53 use a green (530+-2&nbsp;nm) filter and Runs 28-41 use a red (670+-2 nm) filter.</p> <p>crop-images.ipynb is used to process the raw images located in FullDataset.zip into grayscale jpg images, these processed images are then fed into Ringanalyzer-simplified.ipynb that calls from RingAnalyzer.py to convert the 2-D images to a signal-radius plot based on&nbsp;fits of an elliptical pattern, finding ellipticity, centroid, and rotation angle.</p> <p>process_run_logfit.m ultilizes&nbsp;the 1-D signal plot used to convert the piezo voltages to coupler distances, then a Lorentz fit is applied to the data from the oscilloscope - using lorentzfit.m to perform the fit.&nbsp;The&nbsp;final&nbsp;result&nbsp;is&nbsp;a log plot of the coupling linewidth as a function of distance.&nbsp;</p> <p>The data for resultant plots can be found in ProcessedDataset.zip and can be plotted by plot_processed_run.m.</p> <p>Figure 3.zip&nbsp;contains just the data subset used to generate Figure 3, with fig3.m to generate the figure.</p>