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(A) Initiation and decay of the modulation produced by a spatially periodic UV thermal perturbation with λ = 225 μm for a planar interface (SCN/C152, V = 0.8 μm/s, G = 20.25 K/cm, C∞ = 0.30 wt%) (time, in minutes and seconds, increases from Bottom to Top). (B) Amplitude of the largest spatial Fourier component of the interface modulation vs. time, and exponential fit in the range t = 684–810 s (aq,fit = −0.0136 s−1).
