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

• Authors: S.K. Sharma , G. Ghosh
• Languages of publication: EN

Abstracts

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.

Keywords

EN

42.25.Fx; 41.20.Jb

• Journal: Acta Physica Polonica A
• Year: 1997
• Volume: 91
• Issue: 3
• Pages: 555-561

Dates

published

1997-03

received

1996-07-31

(unknown)

1996-11-13

Contributors

author

S.K. Sharma

• S.N. Bose National Centre for Basic Sciences, DB 17 Bidhan Nagar, Calcutta-700 064, India

author

G. Ghosh

• Saha Institute of Nuclear Physics, 1/AF Bidhan Nagar, Calcutta-700 064, India