photonic time crystals remain uniform in space but exhibit a periodic oscillation in time. This distinctive quality creates "momentum band gaps," or unusual states where light pauses inside the ...

The Plasma Photonic Crystal 'kaleidoscope' offers dynamic control of topology and electromagnetism, advancing the field of ...

Techniques for Band Gap Engineering vary, including doping, the introduction of impurities into a semiconductor to alter its electrical properties; strain engineering, where stress is applied to ...