When a light beam of time-independent intensity hits a transparent object, the light does not get absorbed but is scattered by the material -- a phenomenon caused by the unitary property of the ...

Normally, the gas won't allow light to pass through it. But it can be made transparent by illuminating it with a laser beam, called the 'coupling beam'.

Researchers discovered in 1992 that a beam of light could have orbital angular momentum, meaning that the beam twists as it propagates forward, with each photon circling around the centre of the beam.

The Sacramento Kings look to break a record-long NBA playoff drought. Golden 1 Center’s new laser beam after wins is a symbol of hope.