title: Template-assisted three-dimensional nanolithography via geometrically irreversible processing.
abstract: An innovative and versatile nanofabrication technique based on template assisted three-dimensional (3D) nanolithography is presented that takes advantage of the irreversibility of conformal growth and conformal etching at locations with negative surface curvatures in 3D templates. Using colloidal crystals as templates, nanoring particles are generated with quantity much higher than conventional methods. Relying on the same principle, metallodielectric photonic crystals with discrete metal elements are fabricated that show strong absorption in the near-IR and transmission at longer wavelengths.
authors.affiliation: Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory and Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA.
authors.forename: Xindi
authors.initials: X
authors.lastname: Yu
authors.forename: Huigang
authors.initials: H
authors.lastname: Zhang
authors.forename: John K
authors.initials: JK
authors.lastname: Oliverio
authors.forename: Paul V
authors.initials: PV
authors.lastname: Braun
mesh_terms: D003460:Crystallization / Q000379:methods*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008670:Metals / Q000737:chemistry*; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods*; D010316:Particle Size; D010781:Photography / Q000379:methods*; D013499:Surface Properties
chemical_list: D046911:Macromolecular Substances; D008670:Metals