Physics6, 1 (2013) – Published January 2, 2013
A zero refractive index at optical frequencies, as demonstrated in a new nanoscale waveguide, enables opportunities for better control and enhancement of light propagation in waveguides, as well as development of photonic nanocircuits.
Physics5, 104 (2012) – Published September 14, 2012
Thin filaments of intense laser light have many potential uses but are unstable. Experiments demonstrate that they can be stabilized by sending them through glass whose properties vary periodically in space.