The angular momentum of light Recent developments in the angular momentum of light present fresh challenges to long established concepts and pave the way for new and wide ranging applications. The scope for structured light such as optical vortices in particular now extends from microfluidics to quantum information. This is the first comprehensive edited collection dealing with light carrying spin and orbital angular momentum covering both fundamental and applied aspects. Written by internationally leading specialists the chapters have been compiled to reflect the latest scientific progress and to address the multitude of theoretical experimental and technical issues associated with this vibrant and exciting field. The volume is an authoritative reference for academic researchers and graduate students engaged in theoretical or experimental study of optical angular momentum and its applications. It will also benefit professionals in physics optics and optical engineering chemistry and biology