A double blast of dying stars may be the first observed case of a long-hypothesized, never proven “superkilonova.” Although ...

Abstract: In the joule balance, it is important to measure the relative displacement between the exciting magnet and the suspended coil. So, we have designed and applied a compact dual-axis heterodyne ...

Ten years ago, astronomers made an epic discovery with the Laser Interferometer Gravitational-Wave Observatory. Cosmology hasn’t been the same since, and it might not stay that way much longer. Out ...

The relentless pursuit of higher precision in semiconductor lithography and atomic-scale manufacturing demands measurement systems capable of sub-nanometer accuracy, multi-axis capability, and robust ...

Abstract: A simple integrated interferometer with an open cavity for salinity and temperature measurement is theoretically analyzed and verified in the article. The sensing probe consists of a small ...

A hybrid phase demodulation structure combining a 3 × 3 coupler and Sagnac interferometer is proposed to improve the spatial resolution and phase demodulation performance of the phase-sensitive ...

In a new study, physicists at the University of Colorado Boulder have used a cloud of atoms chilled down to incredibly cold temperatures to simultaneously measure acceleration in three dimensions—a ...

The Allen Telescope Array, Hat Creek Radio Observatory. Credit: Alexander Pollak. Radio interferometry is a technique in radio astronomy where signals from two or more radio telescopes are combined to ...

Imagine trying to measure something so tiny, faint, or fragile that even our best scientific tools can’t handle it, like checking the width of a human hair from far away, or looking inside soft ...

Interferometry is a technique that combines light waves to produce interference patterns, which can be analyzed to measure distances, shapes, and surface features with extreme precision. 1 Thanks to ...

Interferometers, devices that can modulate aspects of light, play the important role of modulating and switching light signals in fiber-optic communications networks and are frequently used for gas ...