Designers, engineers and makers looking for a versatile modular multifunctional measuring instrument may be interested in a new design created by Vasileios Vasilakakis located in Greece. Watch the ...

Frequency combs are specialized lasers that generate evenly spaced-out lines of light akin to the teeth of a comb or, more aptly, the tick marks on a ruler. In the roughly quarter-century of their ...

We earn commissions from purchases you make using links in our articles. Learn more. If you need precise measurements, you're going to want digital calipers. When it comes to measuring lumber or ...

Laser interferometry has emerged as a pivotal technique for precision measurement, utilising the interference of coherent laser beams to detect minute displacements and variations in optical path ...

Just as a meter stick with hundreds of tick marks can be used to measure distances with great precision, a device known as a laser frequency comb, with its hundreds of evenly spaced, sharply defined ...

(top) Overview of the 113-km experimental path for BDCR. (bottom) The primary apparatus at two experimental sites. The OFCs at the two terminals of the same wavelength have a slight frequency ...

Two satellites have used lasers to measure the distance between them, with a precision of 0.3 nanometres. The Gravity Recovery and Climate Experiment Follow-On (GRACE-FO) mission carries an instrument ...

Stanford researchers have unveiled a new type of frequency comb, a high-precision measurement device, that is innovatively small, ultra-energy efficient, and exceptionally accurate. With continued ...