EOSAM 2022
Open Access

Figure 13


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Geometrical construction to derive group birefringence Bg(λ) (dashed black curve) from phase birefringence B(λ) (red solid curve), as seen in [1]; the tangents Ti(λ) (blue dashed lines) cross the ordinate axis, i.e., where λ = 0, at Bg(λi); cases with i = 1 or 2.

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