Photons can have half-integer values of angular momentum when they are confined to fewer than three dimensions. That is the conclusion of physicists in Ireland, who have revived an experiment first ...

Light that twists as it travels and materials whose internal order is knotted like a pretzel are starting to collide in the ...

The glass-like plate at the centre of the photograph is the angular filter. A beam of white light is incident from the right at Brewster's angle and is transmitted through the filter. The red beam of ...

Recently, National Science Review published online the research results on three-dimensionally oriented orbital angular momentum of light from Professor Qiwen Zhan's team at the University of Shanghai ...

Apple is working on new fingerprint sensing technology that could work through an iPhone display by taking advantage of off-axis angular light. In a new patent application, Apple hones in on optical ...