Email this article On focusing of a converging spherical wave traveling through the boundary of a material medium
- Authors: Shevchenko V.V.1
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Affiliations:
- Kotel’nikov Institute of Radio Engineering and Electronics
- Issue: Vol 62, No 10 (2017)
- Pages: 1099-1100
- Section: Electrodynamics and Wave Propagation
- URL: https://journals.rcsi.science/1064-2269/article/view/198834
- DOI: https://doi.org/10.1134/S1064226917100163
- ID: 198834
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Abstract
It is revealed in the ray approximation that focusing of a converging spherical wave traveling through the boundary of a material medium can be retained if a lens-like pad is used on the medium boundary. Conditions imposed on the parameters of such a pad are presented. Dimensions of the volumetric spot in the region of the wave focusing point are estimated with consideration for the Fraunhofer diffraction at the edge of a round pad.
About the authors
V. V. Shevchenko
Kotel’nikov Institute of Radio Engineering and Electronics
Author for correspondence.
Email: sto@cplire.ru
Russian Federation, Moscow, 125009
