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Evanescent Field Based Photoacoustics: Optical Property Evaluation at Surfaces

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Published on: July 26, 2016

Coding Acoustic Metasurfaces.

Boyang Xie¹, Kun Tang², Hua Cheng¹

¹The MOE Key Laboratory of Weak Light Nonlinear Photonics, School of Physics, TEDA Institute of Applied Physics, and the 2011 Project Collaborative Innovation Center for Biological Therapy, Nankai University, Tianjin, 300071, China.

Advanced Materials (Deerfield Beach, Fla.)

|December 7, 2016

Summary

This summary is machine-generated.

This study demonstrates how coding acoustic metasurfaces use logical bits for advanced wave control. Programming these bits enables sophisticated functions like unique antenna patterns and wave focusing.

Keywords:

acoustic coding metasurfaces phase

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Area of Science:

Acoustics and Materials Science
Wave Phenomena and Metasurfaces

Background:

Metasurfaces offer advanced wave manipulation capabilities.
Acoustic metasurfaces utilize programmable elements for wave control.

Purpose of the Study:

To explore the potential of coding acoustic metasurfaces for sophisticated wave control.
To demonstrate the creation of complex wave phenomena using programmed acoustic metasurfaces.

Main Methods:

Implementing acoustic logical bits capable of precise phase and amplitude control.
Programming sequences to dictate the behavior of acoustic metasurfaces.

Main Results:

Acoustic logical bits achieve an exact π phase difference and amplitude matching for transmitted waves.
Demonstrated acoustic metasurfaces with programmed coding sequences exhibit diverse functionalities.

Conclusions:

Coding acoustic metasurfaces provide a versatile platform for advanced acoustic wave manipulation.
The demonstrated programming approach allows for the realization of tailored wave control applications, including peculiar antenna patterns and wave focusing.