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Table 1 Fitting coefficients of \({Ge}_{23}{Sb}_{12}{S}_{65}\) glass

From: Design of hexagonal chalcogenide photonic crystal fiber with ultra-flattened dispersion in mid-infrared wavelength spectrum

A

\({B}_{1}\)

\({B}_{2}\)

\({B}_{3}\)

\({C}_{1}\)

\({C}_{2}\)

\({C}_{3}\)

1

0.0415

0.0722

4.0043

0.0968 \(\times {10}^{-12}\)

174.0509 \(\times {10}^{-12}\)

0.0558 \(\times {10}^{-12}\)