Sources of attosecond-duration light pulses provide the fastest time resolutions available today for observing ultrafast phenomena in atoms, molecules and condensed matter. The measurement of such ...

Generating ultrashort laser pulses that last a few femtoseconds is a highly active area of research that is finding applications ranging from micromachining to eye surgery. For optimum results it is ...

Ultrashort pulses have been measured in both space and time at and near a focus for the first time. The researchers hope that their technique will help scientists to detect and compensate for ...

Researchers have developed software that could let you measure your pulse using nothing more than your earphones and a smartphone. The tech measures the air pressure in your ear canal, taking ...

One of the best things about digital oscilloscopes is that they can measure the acquired waveforms using a wide range of helpful measurement parameters. Most current oscilloscopes include about twenty ...

A team of researchers at the Max Born Institute have managed to fully characterize few-femtosecond-long light pulses tunable ...

Embedded in a cellphone or in accessories such as rings, bracelets or watches, the novel tools aim to make it easier to manage hypertension Matías A. Loewy, Knowable Magazine A new generation of blood ...

Heart rate is one of the most basic and important indicators of health, providing a snapshot into a person’s physical activity, stress and anxiety, hydration level, and more. Traditionally, measuring ...

When these tiny blood vessel pulses become excessive, they may interfere with the brain’s “glymphatic system,” a recently identified network that clears away waste such as beta-amyloid, the protein ...