The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

Filters transmit some colours of light and absorb other colours of light. Colours which are transmitted pass through the filter and come out the other side. Colours which are absorbed do not pass ...

” He and his collaborators (Alessandro Zavatta and Silvia Viciani) found that if they added a photon of light to an existing light pulse with a laser, the pulse ended up with more photons. What they ...