Light
Light or visible light is electromagnetic radiation within the portion of the electromagnetic spectrum that the human eye perceives. The primary properties of light are intensity, propagation direction, frequency or wavelength spectrum, and polarization. Light is a transverse wave and does not need any medium to travel. The speed of light in a vacuum is a fundamental physical constant, the currently accepted value of 299,792,458 meters per second. Light can also be described as a stream of photons, massless packets of energy.
Scientists successfully demonstrated quantum interference among several single photons
A leap forward in optical quantum computing.
Scientists visualized quantum effects in electron waves
Kapitza-Dirac effect used to show temporal evolution of electron waves.
Astronomers observed jets of matter being expelled 3X the speed of light
‘Cosmic Cannibals’ expel jets into space at 40% speed of light.
Improving quantum computing using polarization
Paving the way for quantum imaging in many different fields.
Scientists proved the fundamental limits of electromagnetic energy absorption
Mathematical solution evaded discovery for over two decades.
Recycling rare-earth phosphors from used fluorescent bulbs
A simpler way to collect slightly magnetic particles.
UV-sensitive tape that can transfer 2D materials like graphene in an easier
As easily as child’s play.
Scientists discovered new channels to excite magnetic waves with terahertz light
New insights into the ultrafast control of magnetic materials.
Flying insects become disorientated and trapped by artificial light
New insights into why nocturnal insects gather around light.
Researchers discover ancient origins of light-sensing cells in retina
Specialized cells that simultaneously signal the presence of light in two unique ways.