Work

Helical Assemblies of Gold Nanoparticles

Year: 2011

Type: article

Abstract: Chiral metallic nanohelices with periodicity in the submicrometer regime are made from twisted CdTe nanoribbons. These helices are highly effective in polarization rotation at wavelengths centered at their pitch length. Interestingly, the chiro-optical performance of helical nanoparticle assemblies is better than that of solid gold nanowires with similar geometries, which sets an important target for the design of metamaterials.

Source: Small

DOI: 10.1002/smll.201100536

Authors: G. Daniel Lilly, Ashish Agarwal, Sudhanshu Srivastava, Nicholas A. Kotov

Institution: University of Michigan

Language: English

Topic: Metamaterials and Metasurfaces Applications

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, U.S. Department of Energy, National Institute for Materials Science

Awards: Acquisition of a Field Emission Gun Analytical Electron Microscope for the University of Michigan Electron Microbeam Analysis Laboratory, Fluid Sensors from Hybrid Nanocolloids with Molecular Springs, TAS::89 0227::TAS RECOVERY; NEW: RECOVERY ACT - EFRC: SOLAR ENERGY CONVERSION IN COMPLEX MATERIALS (SECCM) -- EFRC; PI - PETER GREEN