Abstract
SUMMARYThe lens effect of acoustic waves in a two‐dimensional (2D) phononic crystal is studied by numerical simulation based on the finite‐difference time‐domain (FDTD) method. We calculate the phonon band structure of 2D phononic crystals, consisting of metal/ceramic cylinders placed periodically in water. The lens effect is observed for the far‐field wave in phononic crystals with two‐layered and graded‐index structure. We compare the focal intensity and the energy transmission efficiency in these numerical experiments, and show that a novel energy‐transmission device can be designed using phononic crystals. © 2013 Wiley Periodicals, Inc. Electron Comm Jpn, 97(1): 22–27, 2014; Published online in Wiley Online Library (wileyonlinelibrary.com). DOI 10.1002/ecj.11491
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
