Retrieving "Speckle Washing" from the archives

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1. Refractive Index Variance

   Linked via "speckle washing"

   Scattering Loss: Fluctuations act as scatterers, redirecting energy away from the forward path. This increases the effective attenuation coefficient of the medium.
   Beam Wander and Spreading: In coherent propagation, rapid, large-scale variations in $n$ cause the wavefront to become distorted (a process known as 'speckle washing'), leading to beam displacement and …