Focusing capability of a phononic crystal based on a hollow metallic structure

Anne Christine Hladky-Hennion, Charles Croënne, Jerome Vasseur, Lionel Haumesser, Andrew Norris

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The dispersion curves of a phononic crystal (PC) based on a hollow metallic structure are presented. They exhibit a negative refraction dispersion branch and perfect refractive index matching with the surrounding water, leading to focusing capability. Numerical and experimental results are reported for a flat PC lens. The characteristics of the focal spot (intensity, dimensions, etc.) are numerically and experimentally investigated with the goal of finding the frequency of the optimal imaging performance.

Original languageEnglish (US)
Article number6863852
Pages (from-to)1314-1321
Number of pages8
JournalIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Volume61
Issue number8
DOIs
StatePublished - Aug 2014

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Acoustics and Ultrasonics
  • Electrical and Electronic Engineering

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