DIRECTIONS FOR FIGURE 2 For each annulus density [1e18, 2e18, 3e18, 4e18, 1e19 inverse cubic meters], an individual data file is included; these contain two columns each with the first column being the k-parallel value [inverse meters] of each eigenmode and the second is the loading resistance [ohms] of that mode. For Figure 2b, one data file is included, which contains 5 columns, all of which correspond to the 3e18 annulus density case. The first column is again the k-parallel value [inverse meters] of each eigenmode. The second, third, and fourth column are the power conducted [expressed as loading resistance, in ohms] in the core, annulus, and vacuum regions respectively. The fifth column is the total power conducted [in ohms], which is the sum of the previous three columns. The figure is obtained by dividing the power conducted in each region by the total power for each mode [dimensionless] and then plotting as a function of k-parallel [inverse meters]. DIRECTIONS FOR FIGURE 3 For Figure 3a, 3b, and 3c, each has its own data file with two columns, the first being the radial coordinate [meters] and the second the value of the azimuthal electric field [volts/meter]. Figure 3d has one data file that consists of two parts. The first 2500 lines contain 6 columns. The first is k-parallel (the abscissa data, in inverse meters). The other five are the annulus k-perpendicular values [inverse meters] for each annulus density considered [1e18, 2e18, 3e18, 4e18, and 1e19 cubic inverse meters]. The last 5 lines have two columns, which are the k-parallel [inverse meters] and k-perpendicular values [inverse meters] of the annulus resonance for each annulus density. DIRECTIONS FOR FIGURE 4 There is one data file Figure 4. The first 2500 lines contain five columns. The first is k-parallel [inverse meters], the abscissa data. Column 2 is the axial electric field [volts/meter], column 3 is the azimuthal magnetic field [amps/meter], column 4 is the axial magnetic field [amps/meter], and column 5 is the azimuthal electric field [volts/meter]. The last 46 lines have exactly the same format but correspond to the respective values for the eigenmodes of the system. DIRECTIONS FOR FIGURE 5 Entirely analogous to Figure 4.