2015 is the International Year of Light and Light-based Technologies (IYL 2015), as declared by the United Nations.
Physics World Select: Light 2015 is a free-to-read digital edition containing 10 of the very best feature articles from Physics World magazine on the science and applications of light.
Next-generation optical fibres could boost medicine and industry
Paul Williams provides an accessible introduction to optical frequency combs
Bruce Tromberg describes the techniques for seeing beneath skin
Chris Phillips describes a novel approach to capturing sunlight
Chris Phillips describes how physicists are overcoming the diffraction limit