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- Title
On focusing of a converging spherical wave traveling through the boundary of a material medium.
- Authors
Shevchenko, V.
- 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.
- Subjects
SPHERICAL waves; APPROXIMATION theory; ESTIMATION theory; FRAUNHOFER diffraction; VOLUMETRIC analysis
- Publication
Journal of Communications Technology & Electronics, 2017, Vol 62, Issue 10, p1099
- ISSN
1064-2269
- Publication type
Article
- DOI
10.1134/S1064226917100163