The skies above San Francisco lit up with a laser light display Sunday night as the city launched a new art installation at ...

A team at Harvard and Technical University of Vienna have invented a new tunable laser that uses a series of rings to smoothly emit many light wavelengths from a single chip. The laser could replace ...

Researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) and Technical University of Vienna (TU Wien) have invented a new type of tunable semiconductor laser that ...

When two black holes merge or two neutron stars collide, gravitational waves can be generated. They spread at the speed of light and cause tiny distortions in space-time. Albert Einstein predicted ...

Laser-excited electron motions allow the investigation of fundamental physical phenomena with unprecedented resolution in time, space and energy. The first step in most interactions between light and ...

Light-sheet fluorescence microscopy (LSFM) has emerged as a cornerstone technique in fields ranging from developmental biology 1,2 to cell biology 3, organoid research 4,5 and neuroscience 6,7,8,9. In ...

This story has been corrected. The U.S. Army has shelved its “Valkyrie” laser anti-missile system, shifting instead to the newer Joint Laser Weapon System, to be built with the Navy as part of the ...