Abstract
We derive integral representations suitable for studying the focusing of electromagnetic waves through a symmetrically hyperbolic focusing lens into uniaxial crystal in the presence of cylindrical and coma aberrations using Maslov's method. The uniaxial crystal used is the negative crystal LiNbO3. Numerical computations are made to obtain the results for focused flelds inside negative uniaxial crystal with several difierent orientations of the optical axis in the plane of incidence. The efiects of aberrations inside uniaxial crystal and isotropic medium are also noted. The results are compared with those obtained by Kirchhofi-Huygens integral and Maslov's method which are in good agreement.
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