Measuring monopole and dipole polarizability of acoustic meta-atoms
We present a method to extract monopole and dipole polarizability from experimental measurements of two-dimensional acoustic meta-atoms. In contrast to extraction from numerical results, this enables all second-order effects and uncertainties in material properties to be accounted for. We apply the technique to 3D-printed labyrinthine meta-atoms of a variety of geometries. We show that the polarizability of structures with a shorter acoustic path length agrees well with numerical results....[Show more]
|Collections||ANU Research Publications|
|Source:||Applied Physics Letters|
|Access Rights:||Open Access|
|01_Jordaan_Measuring_monopole_and_dipole_2018.pdf||1.11 MB||Adobe PDF|
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