The article “Ionization-Induced Sub-cycle Metallization of Nanoparticles in Few-Cycle Pulses” by Qingcao Liu et al. was featured on the cover of ACS Photonics in the November 2020 issue. The cover was designed by Qingcao Liu with support by Lennart Seiffert and Matthias Kling, and shows the metallization of nanoparticles in few-cycle laser pulses. The hallmarks for the metallization are a phase change between inner and outer fields (depicted in false color), the screening of inner fields, and a characteristic increase in the cutoff energy of emitted electrons.
19th November 2020