Fig 1.
Scheme of the periodic photonic crystal.
Fig 2.
(a-c) Transmittance of periodic superconducting photonic crystal for PC2, PC3 and PC4, respectively. The other parameters are set as P=0 GPa, Te=4.2 K and θ=0 °.
Fig 3.
(a) Moving tracks of the transmission peaks as the period number increases. (b) Electric field distribution of the superconducting PC3.
Fig 4.
(a) The refractive index ns of the superconductor varying with the pressure and the frequency. (b) The refractive index nd of the dielectric layer varying with the pressure. The other parameters are set as Te=4.2 K and θ=0 °.
Fig 5.
(a) Transmission spectra for different pressures. (b) Logarithm of the transmittance as the pressure changes. (c) Transmittance T and wavelength λc of the DM varying with the pressure. The other parameters are set as Te=4.2 K and θ=0 °.
Fig 6.
(a) The real and imaginary parts of the superconductor refractive index varying with the temperature. (b) The refractive index of the dielectric layer varying with the temperature. The other parameters are set as P=0 GPa and θ=0 °.
Fig 7.
(a) Transmission spectrum around the DM for different temperatures. (b) Logarithm of the transmittance as the temperature changes. (c) Transmittance comparison of the DM varying with the temperature between ns = ns(Te) and ns = 1. (d) Wavelength of the center peak varying with the temperature. The other parameters are set as P=0 GPa and θ=0 °.
Fig 8.
(a) The refractive index of the superconductor varying with the frequency. (b) Transmission spectra for different incident angles. (c) Logarithm of the transmittance as the incident angle changes. (d) Transmittance and wavelength of the DM varying with the incident angle. The other parameters are set as P=0 GPa and Te=4.2 K.
Fig 9.
(a-c) The sensitivity of the wavelength at the DM varying with the pressure (θ=0° and Te=4.2 K), incident angle (P=0 GPa and Te=4.2 K) and the temperature (P=0 GPa and θ=0°), respectively. (d) The sensitivity of the transmittance varying with the temperature (P=0 GPa and θ=0°).
Table 1.
Pressure sensor comparison with recent investigations.