The wave equation: From eikonal to anti-eikonal approximation

When the refractive index changes very slowly compared to the wave-length we may use the eikonal approximation to the wave equation. In the opposite case, when the refractive index highly variates over the distance of one wave-length, we have what can be termed as the anti-eikonal limit. This situat...

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Bibliographic Details
Main Authors: Luis Vázquez, Salvador Jiménez, Alexander B. Shvartsburg
Format: Article
Language:English
Published: Pensoft Publishers 2016-06-01
Series:Modern Electronic Materials
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2452177916300706