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Pseudo-isotropic materials as reflectionless media

Khorasani, S ; Sharif University of Technology | 2001

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  1. Type of Document: Article
  2. DOI: 10.1117/12.444988
  3. Publisher: 2001
  4. Abstract:
  5. In this paper, exact analytical forms of the normal surface and eigenpolarizations in anisotropic media are obtained. Both the permittivity and permeability tensors are supposed to be anisotropic, becoming simultaneously diagonal in the principal system of coordinates. The equation of normal surface in various forms and exact relations for eigenpolarizations are presented and their properties are discussed. Orthogonality relationships between the eigenmodes are also introduced. Sufficient conditions for existence of two, one, or no optical axes are throughly established. The analysis is extended for the case of electrically or magnetically optically active materials, and exact form of eigenpolarizations are derived. It is shown that for the medium with no optical axes, being referred to as pseudo-isotropic medium, under certain conditions there is exactly no reflection. This phenomenon is totally independent of the polarization, angle of incidence, and even wavelength
  6. Keywords:
  7. Anisotropy ; Birefringence ; Electromagnetic waves ; Optical activity ; Propagation
  8. Source: Optoelectronics, Materials, and Devices for Communications, Beijing, 12 November 2001 through 15 November 2001 ; Volume 4580 , 2001 , Pages 399-406 ; 0277786X (ISSN)
  9. URL: https://www.spiedigitallibrary.org/conference-proceedings-of-spie/4580/0000/Pseudo-isotropic-materials-as-reflectionless-media/10.1117/12.444988.short