FOCUSING OF ELECTROMAGNETIC PLANE WAVE INTO UNIAXIAL CRYSTAL BY A THREE DIMENSIONAL PLANO CONVEX LENS
2008; Volume: 83; Linguagem: Inglês
10.2528/pier08041404
ISSN1559-8985
AutoresA. Ghaffar, Qaisar Abbas Naqvi,
Tópico(s)Metamaterials and Metasurfaces Applications
ResumoA three dimensional plano-convex lens which is placed at a certain distance from a plane uniaxial interface has been considered. High frequency fields refracted by the geometry are derived. The treatment is based on Maslov's method. The method combines the simplicity of asymptotic ray theory and generality of the transform method to remedy the problem of geometrical optics around the caustic point of a focusing system. Field patterns are obtained which includes the observation points around the caustic region. The results are found in good agreement with obtained using Huygens-Kirchhoff Principle.
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