Pepper Hamilton LLP
Acoustic diodes and methods of using same
Acoustic diodes, devices incorporating such diodes and methods of using such devices are disclosed. An acoustic diode may include a periodic acoustic grating and a uniform plate. The periodic acoustic grating may include a plurality of gratings. The uniform plate may foe separated from the periodic acoustic grating by a resonant cavity. The acoustic diode may be configured to have a first transmission efficiency for acoustic waves incident on the periodic acoustic grating that is greater than a second transmission efficiency for acoustic waves incident on the uniform plate. The acoustic waves may have a wavelength within a range of wavelengths. Devices incorporating the acoustic diode may include medical imaging devices, such as ultrasound devices, and noise reduction devices.
Nanjing University
H G A A G A A
H03H G10K A61B A61B G01N A61B A61B
inventional inventional inventional inventional inventional inventional inventional
Bin Dong Juan Xiasheng Yong Jianchun
Liang Zhang Tu Guo Li Cheng