Experimental apparatus and VUV beam guiding The design of the spectroscopy apparatus is shown in Extended Data Fig. 1. It consists of the chamber with the SBO crystal for SHG frequency conversion, a vacuum beamline, a VUV spectrometer and a spectroscopy chamber with a thorium-doped crystal and the detection system. The generated VUV beam is aligned
This week, the US Army used a high-energy multipurpose laser to shoot down three drones near the US-Mexico border, which official reports claimed were “posing a physical threat to US military personnel and CBP partners,” referring to Customs and Border Patrol. The operation took place between the night of August 25 and the early morning
They stuffed a real-life ray gun into a 747 to shoot down ballistic missiles and stuck a laser on top of a Humvee to zap roadside bombs. For more than 50 years, the United States military and its researchers have tried to develop laser weapons. None of them panned out. But now, the US Army
Shi, Y. et al. Ten years of perovskite lasers. Adv. Mother. 372413559 (2025). CAS Article Google Scholar Zhu, H. et al. Lead halide perovskite nanowire lasers with low lasing thresholds and high quality factors. Nat. Mother. 14636–642 (2015). CAS Article PubMed Google Scholar Liao, Q. et al. Perovskite microdisk microlasers self-assembled from solution. Adv. Mother.