Accession Number:

ADA582506

Title:

Three Dimensional Optical Metamaterials via Direct Laser Writing

Descriptive Note:

Final rept. 1 Oct 2011-30 Sep 2012

Corporate Author:

FOUNDATION FOR RESEARCH AND TECHNOLOGY-HELLAS HERAKLION CRETE (GREECE)

Personal Author(s):

Report Date:

2013-03-01

Pagination or Media Count:

18.0

Abstract:

In this report we describe our research into the fabrication of fully three-dimensional metallic metamaterials using Diffusion-Assisted Direct Laser Writing, a novel technique which employs quencher diffusion to fabricate structures with resolution beyond the diffraction limit. We have made dielectric 3D nanostructures by multiphoton polymerization using a metal-binding organic-inorganic hybrid material, and we covered them with silver using selective electroless plating. We have used this method to make spirals and woodpiles with 600 nm intralayer periodicity. The resulting photonic nanostructures have a smooth metallic surface and exhibit well-defined diffraction spectra, indicating good fabrication quality and internal periodicity. In addition, we have made dielectric woodpile structures decorated with gold nanoparticles. Our results show that Diffusion-Assisted Direct Laser Writing and selective electroless plating can be combined to form a viable route for the fabrication of 3D dielectric and metallic photonic nanostructures.

Subject Categories:

  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE