Ultra-broadband ultraviolet detection and imaging enabled by copper-halide inside transparent glass (opens in new tab)

The development of broadband ultraviolet (UV) detection and imaging systems is in high demand for applications such as security early warning and environmental monitoring. However, conventional UV detection and imaging systems suffer from limited bandgap tunability, leading to poor compatibility with deep UV wavelengths due to their restricted spectral response. To address this, we fabricated a composite glass device with multi-bandgap design, where Gd3+ ions bridge the bandgap mismatch betwe...