Abstract
We investigate the characteristics of Gaussian beams reflected andtransmitted from a uniaxial crystal slab with an arbitraryorientation of its optical axis. The formulas of the total electricand magnetic fields inside and outside the slab are derived by useof Maxwell's equations and by matching the boundary conditions atthe interfaces. Numerical simulations are presented and the fieldvalues as well as the power densities are computed. Negativerefractions are demonstrated when the beam is transmitted through auniaxial crystal slab. Beam splitting of the reflected beam isobserved and is explained by the resonant transmission for planewaves. Dependences of the lateral shift on the incident angle andbeam width are discussed. Negative and positive lateral shifts areobserved due to the spatial anisotropic properties.
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