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Iwasawa Effects in Multi-layer Optics

Elena Georgieva·Y. S. Kim
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Abstract

There are many two-by-two matrices in layer optics. It is shown that they can be formulated in terms of a three-parameter group whose algebraic property is the same as the group of Lorentz transformations in a space with two space-like and one time-like dimensions, or the $Sp(2)$ group which is a standard theoretical tool in optics. Among the interesting mathematical properties of this group, the Iwasawa decomposition drastically simplifies the matrix algebra under certain conditions, and leads to a concise expression for the S-matrix for transmitted and reflected rays. It is shown that the Iwasawa effect can be observed in multi-layer optics, and a sample calculation of the S-matrix is given.

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Elena Georgieva, Y. S. Kim. 2001-03-30. Iwasawa Effects in Multi-layer Optics. https://doi.org/10.1103/physreve.64.026602

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