This file serves as documentation for the other files in this folder fig1b.xlsx contains the data of 'Modelled real and imaginary permittivities of lactose in the THz frequency range.'. fig1c.xlsx contains the data of 'THz absorption of the CPW with wslot = 20 µm for three different thickness of lactose, hlactose = 0.5, 2, and 4 µm.'. fig2a.xlsx contains the data of 'Field distribution near the CPW slot gap area (at x = 0) for wslot = 20 μm'. fig2b.xlsx contains the data of 'Field distribution near the CPW slot gap area (at x = 0) for wslot = 0.5 μm.'. fig2c.xlsx contains the data of 'The electric field line profiles at edge of the centre conductor along the z-axis, extracted from at y = -15 μm in fig2a and at y = -0.375 μm in fig2b.'. fig2d.xlsx contains the data of 'The amplitude of the maximum electric field near the CPW slot as a function of wslot.'. fig3a.xlsx contains the data of 'THz absorption of the CPW with 0.5-µm-thick lactose block for five different gaps between the centre conductor and ground planes wslot: 0.5, 1, 5, 10, and 20 µm.'. fig3b.xlsx contains the data of 'THz absorption at 530 GHz as a function of hlactose for various wslot.'. fig4a.xlsx contains the data of 'Sensitivity defined by the initial slope of the THz absorption – hlactose curve and volumetric sensitivity enhancement factor as a function of wslot.'. fig4b.xlsx contains the data of 'Effective absorption coefficient (αeff) as a function of wslot for various hlactose.'.