Design and Assessment of Phononic Crystals for Controlling Ultrasonic Wave via Optical Measurement Method

Kensuke Manabe, Atsushi Ishikawa, Ken Yamamoto, Takefumi Kanda, Kenji Tsuruta

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Using an optical visualization technique, we experimentally measure ultrasonic propagation in phononic crystals consisting of a two-dimensional square array of copper wires in the water. Two different phononic crystals are designed and fabricated to exhibit waveguiding property and negative refraction of an ultrasonic wave at 200 kHz. The Fresnel diffraction method is employed to directly visualize intensity profile of the wavefront propagating in the phononic crystals, proving waveguiding and negative refraction of the ultrasonic wave. Non-invasive time-resolved imaging of an ultrasonic wave in artificial acoustic structures is thereby demonstrated, paving the way toward an efficient device design for an advanced ultrasonic wave control.

Original languageEnglish
Title of host publication2018 IEEE International Ultrasonics Symposium, IUS 2018
PublisherIEEE Computer Society
Volume2018-October
ISBN (Electronic)9781538634257
DOIs
Publication statusPublished - Dec 17 2018
Event2018 IEEE International Ultrasonics Symposium, IUS 2018 - Kobe, Japan
Duration: Oct 22 2018Oct 25 2018

Other

Other2018 IEEE International Ultrasonics Symposium, IUS 2018
CountryJapan
CityKobe
Period10/22/1810/25/18

Keywords

  • finite-element method
  • Fresnel method
  • negative refraction
  • optical visualization technique
  • phononic crystal
  • waveguide

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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    Manabe, K., Ishikawa, A., Yamamoto, K., Kanda, T., & Tsuruta, K. (2018). Design and Assessment of Phononic Crystals for Controlling Ultrasonic Wave via Optical Measurement Method. In 2018 IEEE International Ultrasonics Symposium, IUS 2018 (Vol. 2018-October). [8580129] IEEE Computer Society. https://doi.org/10.1109/ULTSYM.2018.8580129