This dataset accompanies the figures from the manuscript entitled “Terahertz magnon-polaritons control using a tunable liquid crystal cavity,” 2025.
The set contains data files and Gnuplot and Python scripts used to generate the following figures:
Figure 2: Reflection spectra of the Fabry-Perot cavity embedding a liquid crystal layer and an antiferromagnetic NiO layer plotted as a function of T for voltage bias of U = 0 V.
Figure 3: Reflection spectra of the Fabry-Perot cavity embedding a liquid crystal layer and an antiferromagnetic NiO layer plotted as a function of voltage bias at T = 353 K.
Figure 4: Temperature-dependent reflection spectra of the Fabry-Perot cavity for the voltage bias values selected in the range from U = 0 V to Us = 30 V.
Figure 5: (a) reflection spectra of the Fabry-Perot cavity for selected values of voltage bias U at the temperature of 353 K and results of the fitting. (b) Amplitude and (c) FWHM of the MP3 and MP4 transitions as a function of U, respectively. (d) Tuning of the interaction strength between the magnon and Fabry-Perot cavity modes, Ω2 and Ω3, by the applied voltage bias. (e) H-field distribution of P2 and P3 for two selected values of U.
Figure 6: Reflection spectra simulated using the transfer matrix method for two values of refractive index nlc of the liquid crystal layer.
Figure S1. Raw time-domain reflection traces measured at different voltage biases.
Figure S2. Reflection spectra vs frequency at two different temperatures.
Figure S3. Temperature dependence of reflection spectra measured from the NiO 330-μm-thick samples alone.
Figure S4. Reflection spectrum measured at 295 K and the voltage bias of 40 V in the spectral range of the P1, P2, and P3 modes, together with a fit.
Figure S5. Reflection spectra as a function of temperature for consecutive voltage biases in the range from 0 V to 30 V.
Figure S6. Reflectivity spectra as a function of temperature for consecutive voltage biases in the range from 0 V to 30 V.
Figure S7. Reflection in consecutive frequency ranges of the structure comprising NiO layer and a liquid crystal cell as a function of voltage bias applied to the liquid crystal cell at 353 K.
