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Fig. A.1

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Illustration of the analytical expression of Eq. A.4 for the parameters of NI2 at λ = 500 nm and Z = 37242 km. Top panel: Real (left y-axis) and imaginary (right y-axis) parts of FL(u) for L = 52, resulting in wL = 2.7925 m−1. Bottom panel: Modulus of FL(u) for the two values L = 52 m and L = 208 m, with uL = 2.7925 m−1 and uL = 10.1179 m−1, respectively.

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