(Nanowerk News) Researchers have developed a new way to control and manipulate optical signals by embedding a liquid crystal layer into waveguides created with direct laser writing. The new devices ...

Microscope image of the laser written waveguide array (left) fabricated in glass by researchers at Penn State to have a geometry that leads to the topological protection of light. Laser light ...

Researchers embedded a liquid crystal layer into a waveguide that was created with direct laser writing (pictured). The resulting hybrid device can be used to change the polarization of light ...