We consider a new mechanism for the depolarization of light by simple fluids that arises only in the gas-liquid critical region. It is shown that the contributions to the integrated scattering intensity can be separated into two distinct kinds: single scatterings off anisotropic clusters of interacting atoms and successive single scatterings off undistorted particles separated by macroscopic distances. Under almost all sample conditions the depolarized spectrum is determined wholly by the former, collision in…
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