Temperature-Dependent Excitonic Light Manipulation with Atomically Thin Optical Elements
Ludovica Guarneri,
Qitong Li,
Thomas Bauer
et al.
Abstract:Monolayer 2D semiconductors, such as WS 2 , exhibit uniquely strong light−matter interactions due to exciton resonances that enable atomically thin optical elements. Similar to geometry-dependent plasmon and Mie resonances, these intrinsic material resonances offer coherent and tunable light scattering. Thus far, the impact of the excitons' temporal dynamics on the performance of such excitonic metasurfaces remains unexplored. Here, we show how the excitonic decay rates dictate the focusing efficiency of an at… Show more
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