Optical Systems Combined with Metalenses
(A) PCF with plasmonic metalens fabricated at the end of the core. The schematic (left) of metalens-integrated PCF and unit cell of gold nanoslit. The SEM images (right): (upper) the end of the PCF superposing with single-mode simulation result and (lower) the metalens. Reprinted with permission from (Yang et al., 2019). Copyright 2019, De Gruyter.
(B) The experimental results of 3D trapping a single particle via a metalens-based optical tweezer. Reprinted with permission from (Tkachenko et al., 2018). Copyright 2018, The Optical Society.
(C) Schematic of metalens combining lens for transmitted light and nanoprinted display for reflected light. Reprinted with permission from (Chen et al., 2020b). Copyright 2020, American Chemical Society.
(D) Schematic of high-dimensional and multiphoton quantum source consisting of a metalens array. The individual metalens is designed with a focal length of 1 mm at λ = 404 nm wavelength and diameter 100 μm. The experimental result of spontaneous parametric downconversion photon pair array is shown in right of (D). Reprinted with permission from (Li et al., 2020b). Copyright 2020, The American Association for the Advancement of Science.