Karim Achouri, Ville Tiukuvaara, Olivier J. F. Martin. Spatial symmetries in nonlocal multipolar metasurfaces[J]. Advanced Photonics, 2023, 5(4): 046001
- Advanced Photonics
- Vol. 5, Issue 4, 046001 (2023)
Fig. 1. Two different metasurface unit cells made of identical scattering particles arranged within (a) a square lattice and (b) a rectangular lattice.
Fig. 2. Cross-sectional view of a metasurface interacting with TE- and TM-polarized plane waves.
Fig. 3. (a) and (b) Metasurface unit cell composed of a T-shaped particle being illuminated by an obliquely incident plane wave. The metasurface lattice is a square.
Fig. 4. Representation of the symmetry-allowed multipolar components corresponding to the metasurface in Fig. 3 .
Fig. 5. Two metasurfaces composed of (a) planar L-shaped structures and (b) vertical L-shaped structures. In both cases, the structures have arms of equal length.
Fig. 6. Symmetry-allowed material parameter tensors corresponding to the metasurface in (a) Fig. 5(a) and in (b) Fig. 5(b) .
Fig. 7. Two metasurfaces composed of a periodic array of (a) square particles and (b) Gammadion particles.
Fig. 8. Symmetry-allowed material parameter tensors corresponding to the metasurface in (a) Fig. 7(a) and in (b) Fig. 7(b) .
Fig. 9. Simulated spherical dipolar and quadrupolar components of an isolated gold Gammadion structure illuminated by an
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