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Transient electro‐optic Kerr effect in spheroidal particles
Author(s) -
Wright A. Kent,
Keefe William E.
Publication year - 1970
Publication title -
biopolymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.556
H-Index - 125
eISSN - 1097-0282
pISSN - 0006-3525
DOI - 10.1002/bip.1970.360091210
Subject(s) - chemistry , birefringence , kerr effect , diffusion , dielectric , rotational diffusion , transient (computer programming) , condensed matter physics , spheres , limiting , rod , constant (computer programming) , ellipsoid , yield (engineering) , optics , anisotropy , classical mechanics , thermodynamics , physics , quantum mechanics , mechanical engineering , medicine , alternative medicine , pathology , nonlinear system , astronomy , computer science , programming language , engineering , operating system
Benoit's theory of the time dependence of the birefringence transient in the Kerr cell following sudden removal of the orienting field has been examined and shown to hold only for spherical part ides and not ellipsoids of revolution. This observation is in agreement with the methods of dielectric dispersion and depolarization of fluorescence which yield two rotary diffusion constants, while Benoit's theory yields only one. A new theory is presented here which contains two rotary diffusion constants and reduces to the Benoit equation in the limiting cases of spheres and infinitely thin rods. Also the theoretical extensions of Tinoco and Ridgeway have been examined and compared to the resulting theory.