The phase and the group velocity of light propagating in conventional optical media cannot exceed the speed of light in ...

A recent study led by quantum researchers at the Department of Energy's Oak Ridge National Laboratory proved popular among ...

A new publication from Opto-Electronic Advances; DOI 10.29026/oea.2025.240275, discusses A highly sensitive laser gas sensor based on a four-prong ...

Scientists have developed a high-resolution distributed temperature sensing technique using plastic optical fibers, achieving a spatial resolution of 4.8 centimeters. This breakthrough, based on ...

An external-cavity wavelength-swept laser, characterized by its exceptional temporal coherence and extensive tuning range, serves as a crucial light source for cutting-edge fields such as fiber ...

Additionally, the Frequency-dependent Amplitude Variation with Offset (FAVO) technique can estimate velocity dispersion by using the reflection coefficient information related to incidence angle and ...