Liquid crystals are substances that flow like a liquid but maintain some of the ordered structure of crystals. Liquid-crystal molecules tend to be elongated and to orient in specific directions.

Creating photonic time crystals for visible light has long been challenging due to the need for extremely rapid yet simultaneously large-amplitude variation of material properties. To date, the ...

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Breakthrough in photonic time crystals could change how we use and control light The new discovery could dramatically enhance technologies like lasers, sensors and optical computing in the near ...

The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Fudan University, Shanghai 200433, China ...