Abstract
Plasmonic metasurfaces provide a compact platform to engineer the wave-front of optical beams by tuning the material and its morphology, hence enabling advanced functionalities in ultra-thin photonic systems [1,2]. In standard metasurfaces, however, the optical response is usually static and fixed by design. An appealing possibility to achieve ultrafast dynamical tuning is given by optically-induced plasmonic systems, where the metallic response of narrow-bandgap semiconductors is driven by high-fluence illumination. Under these conditions, the surface of the semiconductor can be overflown with photo-carriers inducing a transient metallic state [3]. An intriguing question is whether the transient metallization could be employed to dynamically engineer the optical response and to control light-matter interactions on the surface.
© 2019 IEEE
PDF ArticleMore Like This
J. Tunesi, L. Peters, J.S. Totero Gongora, A. Pasquazi, A. Fratalocchi, and M. Peccianti
NoTh3B.3 Novel Optical Materials and Applications (NOMA) 2019
Zhongyang Li, Yingfang Ma, Ran Huang, Jianqiang Gu, Zhen Tian, Shuang Zhang, Jiaguang Han, and Weili Zhang
CWA2 CLEO: Science and Innovations (CLEO:S&I) 2011
John F. O’Hara, Hou-Tong Chen, Antoinette J. Taylor, Richard D. Averitt, and Willie J. Padilla
TuB18 Photonic Metamaterials: From Random to Periodic (META) 2007