Large‐Area 3D Nanostructures with Octagonal Quasicrystalline Symmetry via Phase‐Mask Lithography

3D nanostructured quasicrystalline materials significantly larger than feasible with previously reported techniques are produced. 2D quasiperiodic surface relief templates with 8mm point group symmetry are made by multiple-exposure interference lithography. Phase-mask lithography with corresponding PDMS masks produce bicontinuous 3D axial quasicrystal SU-8 structures (see figure).