Email this article Focusing of a diverging ultrasonic beam by a 2D periodic structure into two foci
- Authors: Shipilov K.F.1, Krutyansky L.M.1,2
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Affiliations:
- Wave Research Center, Prokhorov General Physics Institute
- Joint International Laboratory on Critical and Supercritical Phenomena in Functional Electronics, Acoustics and Fluidics (LIA LICS) at Wave Research Center, Prokhorov General Physics Institute
- Issue: Vol 44, No 9 (2017)
- Pages: 258-262
- Section: Article
- URL: https://journals.rcsi.science/1068-3356/article/view/228444
- DOI: https://doi.org/10.3103/S1068335617090032
- ID: 228444
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Abstract
A preliminarily focused (spherically diverging) ultrasonic beam was directed to a structure of metal rods having two-dimensional periodicity and bounded by reflecting surfaces in a dimension in which this periodicity was absent. For the ultrasound frequency taken at the upper boundary of the “transmission” band of the structure, the splitting of the acoustic image of the focus object into two maxima arranged in the sample homogeneity direction is obtained.
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About the authors
K. F. Shipilov
Wave Research Center, Prokhorov General Physics Institute
Author for correspondence.
Email: kfship@kapella.gpi.ru
Russian Federation, ul. Vavilova 38, Moscow, 119991
L. M. Krutyansky
Wave Research Center, Prokhorov General Physics Institute; Joint International Laboratory on Critical and Supercritical Phenomena in Functional Electronics, Acoustics and Fluidics (LIA LICS) at Wave Research Center, Prokhorov General Physics Institute
Email: kfship@kapella.gpi.ru
Russian Federation, ul. Vavilova 38, Moscow, 119991; Vavilova 38, Moscow, 119991
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