Light walking in low-symmetry 2D materials

Functionalizing nanophotonic structures with 2D van der Waals materials

“…In contrast, metasurfaces are engineered optical scatterer arrays with a subwavelength dimension that can achieve powerful control over the fundamental attributes of light, 22,95,135–144 such as the phase, wave vector, amplitude, and frequency, 145–148 with widespread application such as meta-lenses, 149,150 high-efficiency holograms, 151,152 color display, 21,152–154 ultrathin cloaks, 155–157 healthcare sensors, 158–162 LiDAR, 163–165 functional meta-waveguides, 10,166–180 and nonlinear applications, 181–183 to name a few.…”

“…134 They can also be applied as optical cavities for light enhancement and light guiding structures by intentionally introducing point and line defects, respectively. 134 In contrast, metasurfaces are engineered optical scatterer arrays with a subwavelength dimension that can achieve powerful control over the fundamental attributes of light, 22,95,[135][136][137][138][139][140][141][142][143][144] such as the phase, wave vector, amplitude, and frequency, [145][146][147][148] with widespread application such as meta-lenses, 149,150 highefficiency holograms, 151,152 color display, 21,[152][153][154] ultrathin cloaks, [155][156][157] healthcare sensors, [158][159][160][161][162] LiDAR, [163][164][165] functional meta-waveguides, 10,[166][167][168][169][170][171][172][173]…”