Fabrication and realistic modeling of three-dimensional metal-dielectric composites

Mark D. Thoreson, Birck Nanotechnology Center, Purdue University
Jieran R. Fang, Birck Nanotechnology Center, Purdue University
Alexander V. Kildishev, Birck Nanotechnology Center, Purdue University
Ludmila J. Prokopeva, Russian Academy of Sciences
Piotr Nyga, Mil Univ Technol, Inst Optoelect
Uday K. Chettiar, University of Pennsylvania
Vladimir M. Shalaev, Birck Nanotechnology Center, Purdue University
Vladimir P. Drachev, Birck Nanotechnology Center, Purdue University

Date of this Version

5-23-2011

Citation

J. Nanophoton. 5(1), 051513 (May 23, 2011). doi:10.1117/1.3590208

Comments

Mark D. Thoreson ; Jieran Fang ; Alexander V. Kildishev ; Ludmila J. Prokopeva ; Piotr Nyga ; Uday K. Chettiar ; Vladimir M. Shalaev ; Vladimir P. Drachev, "Fabrication and realistic modeling of three-dimensional metal-dielectric composites," Journal of Nanophotonics, Volume 5, Issue 1, Article 051513. 23 May2011.


Copyright 2011 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

http://dx.doi.org/10.1117/1.3590208

Abstract

Historically, the methods used to describe the electromagnetic response of random, three-dimensional (3D), metal-dielectric composites (MDCs) have been limited to approximations such as effective-medium theories that employ easily-obtained, macroscopic parameters. Full-wave numerical simulations such as finite-difference time domain (FDTD) calculations are difficult for random MDCs due to the fact that the nanoscale geometry of a random composite is generally difficult to ascertain after fabrication. We have developed a fabrication method for creating semicontinuous metal films with arbitrary thicknesses and a modeling technique for such films using realistic geometries. We extended our two-dimensional simulation method to obtain realistic geometries of 3D MDC samples, and we obtained the detailed near-and far-field electromagnetic responses of such composites using FDTD calculations. Our simulation results agree quantitatively well with the experimentally measured far-field spectra of the real samples. (C) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.3590208]

Discipline(s)

Nanoscience and Nanotechnology

 

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