Crystals and gemstones can be more than just beautiful—they can be deadly. Minerals like arsenopyrite, cinnabar, galena, and torbernite carry toxic substances like arsenic, mercury, lead, and ...

Nature 407, 608–610 (2000). ADS Google Scholar Notomi, M. et al. Singlemode transmission within photonic bandgap of width-varied single-line-defect photonic crystal waveguides on SOI substrates.

A team experimentally observed higher-order and fractional discrete time crystals (DTCs) in periodically driven Rydberg ...

Nonlinear crystals — commonly used to double or triple the frequency of laser light or create tunable light sources called optical parametric oscillators (OPOs) — have been in use for decades ...

Scientists created photonic time crystals, unique materials that amplify light and could enhance lasers, sensors, and ...