![]() With the help of the femtosecond laser pulse, Armstrong et al. A terahertz elastic wave with the coupled compression-shear deformation has been generated in a silicon doping superlattice by Wilson et al. ![]() ![]() Due to the terahertz elastic wave’s important application, some researchers have successfully realized the excitation of terahertz elastic waves through specific conditions. used the metasurface to achieve the dynamical manipulation of the wavefront of terahertz electromagnetic waves. Generally, terahertz electromagnetic waves are more easily excited than terahertz elastic waves and thus widely studied by many researchers, for example, Cai et al. Terahertz (electromagnetic or elastic) waves have significant applications in the field of material characterization, optical imaging, , security, biomedicine, , and communication technology etc. It lays the theoretical foundations for the design of terahertz elastic wave-based devices. Numerical results show that both phase and group velocities have a 50%-60% reduction in the terahertz range in comparison with those in the low frequency range, and the effective tuning range of the initial electron concentration is different for longitudinal waves with different frequencies. The effects of the interaction between the piezoelectricity and semiconducting properties on the dispersion behaviors of terahertz elastic longitudinal waves are investigated in detail. The Mindlin-Herrmann rod model is more accurate for analysis of terahertz elastic longitudinal wave in rod-like PS structures. Using the derived equations, the analytical dispersion relations of the elastic longitudinal waves propagating in an n-type PS rod are obtained, which can be reduced to those for piezoelectric and elastic rods by sequentially dropping the corresponding electron- and piezoelectricity-related terms. To reveal wave propagation characteristics of terahertz elastic waves in rod-like PS structures, we present three typical rod models based on the Hamilton principle and the linearization of the nonlinear current, which are extensions of the classical, Love, and Mindlin-Herrmann rod models for elastic media to those for PS materials. The PiezoWave can help alleviate pain from Carpal Tunnel, Plantar Fasciitis, Hip pain, Tennis elbow and so much more.Ĭontact our office if you have any questions or to schedule an appointment today! elastic waves travelling in piezoelectric semiconductors (PSs) with the deformation-polarization-carrier coupling have a huge potential application in elastic wave-based devices. After a few microseconds, the rise is followed by a brief period of negative pressure, after which pressure returns to normal again. A MyACT single pressure wave is characterized by an acoustic pulse with a spatial expansion and a very short rise time of only a few nanoseconds. Based on a high level of evidence, Richard Wolf GmbH – a manufacturer of lithotripsy (ESWL) and orthopaedic (ESWT) devices – has specfically designed Piezo therapy sources to generate low energy/low pressure applications for the treatment of myofascial and musculoskeletal pain.Īcoustic pressure waves are mechanical waves that result from the back-and-forth vibration of the particles of the medium through which the sound wave is moving. Many types of focused soundwaves have been used in the eld of medicine with great success for more than 20 years. The pressure waves used in MyACT applications focus or develop in the target tissue at the point where the pain originates. MyACT uses acoustic waves to target tissues at varying depths by compressing and manipulating the tissue, resulting in a focused, precise deep tissue massage, resulting in improved circulation and pain relief.Īcoustic pressure waves are characterized by a pressure surge with an extremely short rise time, which is then followed by an exponential drop in pressure and a brief phase of negative pressure. ![]() Myofascial Acoustic Compression Therapy (MyACT) is used in the treatment of acute and chronic pain in muscles, tendons and joints.
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