Photonic time crystals: a materials perspective [Invited]

Recent advances in ultrafast, large-modulation photonic materials have opened the door to many new areas of research. One specific example is the exciting prospect of photonic time crystals. In this perspective, we outline the most recent material advances that are promising candidates for photonic time crystals. We discuss their merit in terms of modulation speed and depth. We also investigate the challenges yet to be faced and provide our estimation on possible roads to success.

Automated summary

Recent advances in ultrafast, large-modulation photonic materials have led to the potential development of photonic time crystals. This perspective discusses the promising candidates for photonic time crystals, outlining their modulation speed and depth. The challenges and possible paths to success are also analyzed.