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Refraction at a curved dielectric interface - Geometrical optics solutionThe transmission of a spherical or plane wave through an arbitrarily curved dielectric interface is solved by the geometrical optics theory. The transmitted field is proportional to the product of the conventional Fresnel's transmission coefficient and a divergence factor (DF), which describes the cross-sectional variation (convergence or divergence) of a ray pencil as the latter propagates in the transmitted region. The factor DF depends on the incident wavefront, the curvatures of the interface, and the relative indices of the two media. Explicit matrix formulas for calculating DF are given, and its physical significance is illustrated via examples.
Document ID
19820037348
Document Type
Reprint (Version printed in journal)
Authors
Lee, S.-W. (Illinois Univ. Urbana, IL, United States)
Sheshadri, M. S. (Illinois Univ. Urbana, IL, United States)
Mittra, R. (Illinois, University Urbana, IL, United States)
Jamnejad, V. (California Institute of Technology, Jet Propulsion Laboratory, Pasadena CA, United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1982
Publication Information
Publication: IEEE Transactions on Microwave Theory and Techniques
Volume: MTT-30
Subject Category
ELECTRONICS AND ELECTRICAL ENGINEERING
Funding Number(s)
CONTRACT_GRANT: N00019-79-C-0281
Distribution Limits
Public
Copyright
Other