Exciton-Enabled Meta-Optics in Two-Dimensional Transition Metal Dichalcogenides
Zeng Wang, Guang Yuan, Ming Yang, Jianwei Chai, Qing Yang Steve Wu, Tao Wang, Matej Sebek, Dan Wang, Lei Wang, Shijie Wang, Dongzhi Chi, Giorgio Adamo, Cesare Soci, Handong Sun, Kun Huang, Jinghua Teng
Abstract
significantly facilitates high transmission of the sieved photons and high-fidelity nanofabrication. A proof-of-concept two-dimensional (2D) nanosieve hologram exhibits 10-fold enhanced efficiency compared with its non-2D counterparts. Furthermore, a supercritical 2D lens with its focal spot breaking diffraction limit is developed to exhibit experimentally far-field label-free aberrationless imaging with a resolution of ∼0.44λ at λ = 450 nm in air. This transition-metal-dichalcogenide (TMDC) photonic platform opens new opportunities toward future 2D meta-optics and nanophotonics.