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Optical constants of several multilayer transition metal dichalcogenides measured by spectroscopic ellipsometry in the 300-1700 nm range: high-index, anisotropy, and hyperbolicity

<p># Data and plotting code for &quot;Optical constants of several multilayer transition metal dichalcogenides measured by spectroscopic ellipsometry in the 300-1700 nm range: high-index, anisotropy, and hyperbolicity&quot; by&nbsp;Battulga Munkhbat, Piotr Wr&oacute;bel, Tomasz J. Antosiewicz, and Timur O. Shegai, ACS Photonics (2022); https://doi.org/10.1021/acsphotonics.2c00433</p> <p><br> ## Contents</p> <p>* &lt;TMD-material&gt;: directories with raw and derived data for all 10 TMDs<br> * f3_dataset_*_nm_ex1_ex2_ey1_ey2_ez1_ez2.txt: obtained permittivities<br> * plot_*_v1.m: Matlab scripts for plotting data</p> <p>## Description of the data</p> <p>The raw and derived data stored in directories &lt;TMD&gt; contain the following files:</p> <p>* &lt;TMD&gt;/&lt;date&gt;-&lt;TMD&gt;.SEsnap: binary data file with collected data, CompleteEASE format<br> * &lt;TMD&gt;/&lt;date&gt;-&lt;TMD&gt;-E*.mat: ascii text file with permittivity data separated into individual components as exported from CompleteEASE software<br> * &lt;TMD&gt;/&lt;date&gt;-&lt;TMD&gt;-full.mat: ascii text file with fitted model parameters as exported from CompleteEASE software<br> * &lt;TMD&gt;/&lt;TMD&gt;-data/*.txt: selected raw data and fits for all considered samples (Mueller Matrix or Delta/Psi/depolarization).</p> <p>The structure of the data file names is as follows:<br> &lt;order-number-in-CompleteEASE&gt;-s&lt;sample-name&gt;-&lt;data-type&gt;.txt for general ellipsometry (delta, psi, depolarization) or<br> &lt;order-number-in-CompleteEASE&gt;-s&lt;sample-name&gt;-o&lt;in-plane-sample-rotation-number&gt;-mm.txt for Mueller Matrix measurements.</p> <p>The following two scripts can be used to plot the raw measured data (solig lines) along with corresponding fits (black dotted lines):</p> <p>* plot_mm_v1.m: Matlab script for plotting Mueller Matrix data for WTe2 and ReS2<br> * plot_psi_delta_depol_v1.m: Matlab script for plotting psi, delta, and depolarization data for other TMDs</p> <p>The diagonal permittivity tensor data are saved in the f3_dataset_*_nm_ex1_ex2_ey1_ey2_ez1_ez2.txt files which can be plotted using the plot_permittivity_v1.m Matlab script. The format of this file is as follows:</p> <p>wavelength in nanometers; real part of epsilon_xx; imaginary part of epsilon_xx;&nbsp; real part of epsilon_yy; imaginary part of epsilon_yy; real part of epsilon_zz; imaginary part of epsilon_zz;</p> <p>&nbsp;</p> <p>&nbsp;</p>