Fig. 1. Schematics of magnetic ENZ medium filled with dielectric dopants: (a) A 2D magnetic ENZ medium with several macroscopic non-magnetic dielectric dopants and an alternating magnetic current I_M embedded in the ENZ medium whose magnetic field H₁ is polarized along y axis; (b) the equivalent homogeneous 2D ENZ medium with the same cross-sectional shape and near-zero permittivity, but a uniform equivalent relative permeability μ_eff

Fig. 2. Effective relative permeability (μ_eff) of the doped ENZ medium as a function of the doping rod radius.

Fig. 3. Enhancement factors of internal magnetic field in the dopant compared with external radiation field with the different radius of dopant: (a) Enhancement factors of internal magnetic field in the dopant with different r_d; (b) the simulation result of magnetic field of point source in free space; (c), (d), (e) simulation results of magnetic field in ENZ filled with dopant with different radius of dopant (r_d/λ₀ = 0.15659, 0.35958, 0.56427), respectively.

Fig. 4. Simulation results of magnetic field in ENZ medium filled with the dopant containing different point sources, respectively: (a) One point source embedded in the ENZ medium (ε_r1 = 6, r_d/λ₀ = 0.158); (b) two point sources embedded in the ENZ medium; (c) two point sources located somewhere in ENZ medium; (d) two point sources embedded in an ENZ square (with the same cross section).

Fig. 5. Analysis and simulation of ignition device at wavelength of 270 nm: (a) The relative permittivity of silver film (red line) and the effective relative permeability of silver film filled with dielectric dopant at wavelength of 263 nm to 275 nm (blue line); (b) the simulation result of magnetic field in silver film filled with dielectric dopant at wavelength of 270 nm (r_d/λ₀ = 0.2261, ε_rd = 3).