Table 1 Optimal parameters of the best-fit curves for frequencies at the edge of the forbidden band

From: Orthogonality breaking induces extraordinary single-mode transparency in an elaborate waveguide with wall corrugations

f(Hz)

a 0

a 1

a 2

a 3

6295

0.4797

0.6552

−0.1559

0.0210

7320

0.6372

0.4911

−0.1042

−0.0241

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