A small device called an ultrasound probe is used, which gives off high-frequency sound waves. We can't hear these sound waves, but when they reflect off different parts of the body, they create ...

However, achieving high-quality photoacoustic and ultrasound imaging simultaneously within an ultra-compact probe has proven challenging ... electrodes and urethane sound-absorbing layers ...

Conventional speakers work by moving air around to create sound, but tiny speakers that use ultrasonic frequencies to create pressure and generate sound opens some new doors, especially in terms ...