Abstract
The flux of energy given by the Poynting vector and the -wave vector normal to the geometrical wavefront for the extraordinary ray propagating through uniaxial crystals can be evaluated by using the theory developed by Avendaño-Alejo et al. [J. Opt. Soc. Am. A 19, 1668 (2002) ] and Avendaño-Alejo and Stavroudis [J. Opt. Soc. Am. A 19, 1674 (2002) ]. We give here the equations necessary to evaluate the general dispersion angle . Additionally we define two new dispersion angles, and , where A is the crystal axis vector. With these new dispersion angles we evaluate the optical path length traversed by the extraordinary ray in a plane-parallel uniaxial plate when the crystal axis lies in the plane of incidence.
© 2006 Optical Society of America
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