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Fig. 5. (Color online) The cross-sectional profile (the black curve) along the x axis at the center of the double-void defects and its double Gaussian fitting (the red curve). The two green curves indicate each Gaussian components forming the double Gaussian fitting. The inset shows the two-dimensional image of the transmission amplitude of CW THz waves in the Sample II that consists of two artificial void defects with the diameters of 382 µm and 385 µm.
New Phys.: Sae Mulli 2021;71:305~309