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Items tagged with "photonics"

Blue spheres representing atoms cause light, represented by red squiggly lines to scatter. A laser beam is represented in the background.
August 4, 2020

Scientists See Train of Photons in a New Light

Flashlight beams don’t clash together like lightsabers because individual units of light—photons—generally don’t interact with each other. Two beams don’t even flicker when they cross paths.

February 26, 2016

Characterizing quantum Hall light zooming around a photonic chip

When it comes to quantum physics, light and matter are not so different. Under certain circumstances, negatively charged electrons can fall into a coordinated dance that allows them to carry a current through a material laced with imperfections. That motion, which can only occur if electrons are confined to a two-dimensional plane, arises due to a phenomenon known as the quantum Hall effect.