In this talk, I will present our practical design of a three-dimensional (3D) acoustic DZIM, which is made of a cubic lattice of metal rods. We demonstrate a four-fold degenerate point with conical dispersion can be induced at the Brillouin zone center, at which the effective mass density and compressibility simultaneously turning zero. To demonstrate the extraordinary functionalities of the DZIM, we have fabricated an acoustic "periscope" with two 90° turns to achieve almost perfect tunneling of a normally incident plane wave. The experimental results agree well with our theoretical predictions and numerical simulations.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.