Ensemble Averages Calculated for Two-Dimensional Smoluchowski-Debye Rotational Diffusion in DC Electric Field
W. Alexiewicz, S. Kielich and L. Wołejko
Nonlinear Optics Department, Institute of Physics, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland
Received: December 20, 1993
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Ensemble averages ⟨cos nϑ(t)⟩ (n = 1, 2, 3, 4) are calculated for the two-dimensional Smoluchowski-Debye rotational diffusion model in the presence of a DC reorienting electric field. The time dependence of ⟨cos nϑ(t)⟩ is plotted for the special cases of (i) dipolar nonpolarizable molecules (p ≠ 0), and (ii) nondipolar anisotropically polarizable molecules (p = 0) and rectangular reorienting pulses.
DOI: 10.12693/APhysPolA.85.959
PACS numbers: 77.40.+i