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  1. 1 Acta Physica Polonica A

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  1. 1 1997

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  1. 1 Ghosh G.

  2. 1 Sharma S. K.

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Exact Phase and its Eikonal Approximation for Class of Reflectionless Index Profiles

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Sharma S. K., Ghosh G.
Acta Physica Polonica A
|
1997
|
vol. 91
|
issue 3
555-561
EN
We examine the problem of transmission of electromagnetic waves in a multiparameter reflectionless dielectric. It is shown that it is possible to obtain an analytic form for the phase of the exact transmission amplitude. In the high frequency limit the exact result is found to lead to the eikonal approximation. Interestingly, the high frequency limit and long-range approximation required for the validity of the eikonal approximation are not independent here.
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