This file serves as documentation for the other files in this folder fig1b.txt contains the data of 'The calculated transmission parameter S21 of the SRR integrated PGL.'. fig1c.txt contains the data of 'Real permittivity of healthy and cancerous colonic tissues in the THz frequency range'. fig1d.txt contains the data of 'Loss tangent of healthy and cancerous colonic tissues in the THz frequency range'. fig2c.txt contains the data of 'S21 parameter of the SRR without tissue, with healthy, and cancerous colonic tissues.'. fig2d.txt contains the data of 'Resonant frequency shift as a function of tissue thickness for healthy and cancerous tissue'. fig3a.xlsx contains the data of 'Electric field distribution near the SRR when wgap = 1 µm'. fig3b.xlsx contains the data of 'Electric field distribution near the SRR when wgap = 10 µm.'. fig3c.xlsx contains the data of 'Electric field magnitude at the centre of the gap along the z-axis'. fig3d.xlsx contains the data of 'Maximum electric field magnitude (at z = 0 µm) as a function of wgap '. fig4c.xlsx contains the data of '2D imaging results of Tissue model III using the PI covered SRR integrated PGL.'.