π-phase modulated monolayer supercritical lens
Fei Qin, Boqing Liu, Linwei Zhu and 12 more
Nature Communications · 2021
doi:10.1038/s41467-020-20278-x (opens in a new tab)
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Abstract
Here the authors report binary phase supercritical lenses by patterning monolayer TMD materials. Through placement of atomic thin 2D TMD with sufficient absorption, a spot of critical coupling is created to facilitate a π phase jump and subdiffraction focusing over bandwidth of 150 nm in visible range.
Abstract licence: CC BY-NC-ND
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