For more than 50 years, phase-shifting interferometry has been the technology of choice for high-precision surface form ...

This experimental setup – based on coherence scanning interferometry – was developed at INRiM. Fiber sensing systems integrate photonic and optoelectronic components that are matched with fiber optics ...

Laser self-mixing interferometry (SMI) harnesses the phenomenon of optical feedback by reinjecting a fraction of a laser’s output back into its cavity. This reinjection leads to an interference effect ...

University of Illinois Physics Professor Paul Kwiat and members of his research group have developed a revolutionary new tool for precision measurement at the nanometer scale in scenarios where ...

KAIST researchers tested optical frequency comb lasers as reference signals for radio astronomy, aiming to synchronize radio telescopes with light-based timing in VLBI observations.

The GRAVITY instrument on ESO’s Very Large Telescope Interferometer (VLTI) has made the first direct observation of an exoplanet using optical interferometry. This method revealed a complex ...

Researchers have developed a revolutionary new tool for precision measurement at the nanometer scale in scenarios where background noise and optical loss from the sample are present. (Nanowerk News) ...