META 2021, META'12

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Biaxial Anisotropy: A Survey of Interesting Optical Phenomena in Graded Media
Aaron J. Danner

Last modified: 2012-01-04


Metamaterial devices, or any optical instruments designed from transformation optics almost always require tensor expressions for the permittivity and/or permeability. An experimental implementation is usually practical for only one polarization as a result of this complexity. In this presentation, it will be shown that unusual and interesting behavior can result, however, when we allow general anisotropy in gradient index devices. It is possible, for example, for there to be four (not three) independent optical functions in a spherically symmetric device. Conical refraction in gradient index devices will also be discussed. Phenomena will be explained with photorealistic illustrations.


metamaterials; transformation optics