Dietrich, K.K.DietrichZilk, M.M.ZilkSteglich, M.M.SteglichSiefke, T.T.SiefkeHübner, U.U.HübnerPertsch, T.T.PertschRockstuhl, C.C.RockstuhlTünnermann, A.A.TünnermannKley, E.-B.E.-B.Kley2022-03-062022-03-062020https://publica.fraunhofer.de/handle/publica/26079210.1002/adfm.201905722Artificial photonic nanomaterials made from densely packed scatterers are frequently realized either by top-down or bottom-up techniques. While top-down techniques offer unprecedented control over achievable geometries for the scatterers, by trend they suffer from being limited to planar and periodic structures. In contrast, materials fabricated with bottom-up techniques do not suffer from such disadvantages but, unfortunately, they offer only little control on achievable geometries for the scatterers. To overcome these limitations, a nanofabrication strategy is introduced that merges both approaches. A large number of scatterers are fabricated with a tailored optical response by fast character projection electron-beam lithography and are embedded into a membrane. By peeling-off this membrane from the substrate, scrambling, and densifying it, a bulk material comprising densely packed and randomly arranged scatterers is obtained. The fabrication of an isotropic material from these scatterers with a strong electric and magnetic response is demonstrated. The approach of this study unlocks novel opportunities to fabricate nanomaterials with a complex optical response in the bulk but also on top of arbitrarily shaped surfaces.enartificial photonic nanomaterialcute-wire-pairelectron-beam lithographyoptically isotropic materialself-assembly620541journal article