The terahertz quantum cascade laser on its mounting. Credit: University of Leeds Lasers that switch on and off billions of times per second are the backbone of optical communications networks, but ...

A team of researchers has for the first time successfully used lasers to generate guided sound waves on the surface of a microchip. These acoustic waves, akin to the surface waves produced during an ...

In the ETH experiment, self-oscillations (blue-red) cause sound waves (green, orange, violet) to travel through the circulator only in one direction. Credit: Xin Zou Researchers at ETH Zurich have ...

BERKELEY, CA – Ultrasound and underwater sonar devices could "see" a big improvement thanks to development of the world's first acoustic hyperlens. Created by researchers with the U.S. Department of ...

BOSTON, July 29, 2019-- Measuring a menopausal woman's pulse wave at her wrist may help explain the increase in cardiovascular disease risk during menopause better than a standard blood pressure ...

Measuring a menopausal woman's pulse wave at her wrist can detect circulatory system changes that aren't evident with blood pressure readings. Menopause's effect on these radial pulse wave harmonics ...