Ray and energy propagation in graded-index media
JOSA, Vol. 65, Issue 2, pp. 169-173 (1975)
http://dx.doi.org/10.1364/JOSA.65.000169
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Abstract
We have studied the validity of the eikonal equation for an inhomogeneous medium. The propagation of an electromagnetic wave in a medium that is characterized by a parabolic dielectric constant variation in the transverse direction, has been studied in detail. The general path of a ray has been calculated and the irradiance distribution near the focal point has been analytically obtained.
Citation
A. K. Ghatak and K. Thyagarajan, "Ray and energy propagation in graded-index media," J. Opt. Soc. Am. 65, 169-173 (1975)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-65-2-169
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