Acoustic transmission system
AssigneeGeorgia Tech Research Corporation
InventorChengzhi Shi
Life of this patent
Estimating the term…
Abstract
Disclosed herein are acoustic transmission systems comprising an acoustic wave generator configured to generate an acoustic wave and propagate the acoustic wave through a tissue of a specimen, and a non-Hermitian complementary metamaterial (NHCMM) configured to add a first amount of energy amplification coherently to the acoustic wave to account for energy loss in the acoustic wave as a result of the wave propagating through the tissue of the specimen. The acoustic wave generator can be an ultrasound generator, and the tissue can be a cranium.
Claims18
An acoustic transmission system comprising:
- an acoustic wave generator configured to generate an acoustic wave and propagate the acoustic wave through a lossy tissue of a specimen;
- and
- a non-Hermitian complementary metamaterial (NHCMM) configured to add a first amount of energy amplification coherently to the acoustic wave to account for energy loss in the acoustic wave as a result of the wave propagating through the tissue of the specimens;
- wherein active gain elements in the NHCMM compensate the acoustic wave attenuation through the lossy tissue.
An acoustic transmission system comprising:
- an acoustic wave generator configured to generate an acoustic wave and propagate the acoustic wave through a lossy tissue of a specimen;
- and
- a non-Hermitian complementary metamaterial (NHCMM) configured to add a first amount of energy amplification coherently to the acoustic wave to account for energy loss in the acoustic wave as a result of the wave propagating through the tissue of the specimen;
- wherein negative real parts of the NHCMM are realized by resonating structures, while imaginary parts are contributed by the active gain elements.
Dependencies are inferred from the claim text.