Polymorphs are not mythical, chimeric beasts—they are substances with identical chemical compositions but differing crystal ...

Optical rotatum” is the term researchers coined to describe a newly discovered structure of light. Beams of light that can be shaped into corkscrew-like forms, known as optical vortices, are used ...

Researchers at Rice University have developed a sophisticated 3D photonic-crystal cavity that can trap and control light in ...