Fig. 4: Ultrathin flat lenses of different monolayer TMDC materials.
From: Diffraction-limited imaging with monolayer 2D material-based ultrathin flat lenses
Experimentally measured focal intensity distribution of lenses of different monolayer TMDC materials: a, c MoS2, b, d WS2, e, g PtSe2, and f, h PtS2. The white dashed lines mark the corresponding locations of the intensity cross-sectional plots along the x-direction shown in c, d, g, h. Inset: reflective optical microscopic images. Scale bar: 5 μm
