Title: Self-Assembled Ag–TiN Hybrid Plasmonic Metamaterial: Tailorable Tilted Nanopillar and Optical Properties

Abstract

Key challenges limiting the adoption of metallic plasmonic nanostructures for practical devices include structural stability and the ease of large-scale fabrication. Overcoming these issues may require novel metamaterial fabrication with potentials for improved durability under extreme conditions. Here, in this paper, a self-assembled growth of a hybrid plasmonic metamaterial in thin-film form is reported, with epitaxial Ag nanopillars embedded in TiN, a mechanically strong and chemically inert matrix. One of the key achievements lies in the successful control of the tilt angle of the Ag nanopillars (from 0° to 50°), which is attributed to the interplay between the growth kinetics and thermodynamics during deposition. Such an anisotropic nature offered by the tilted Ag nanopillars in TiN matrix is crucial for achieving broadband, asymmetric optical selectivity. Optical spectra coupled with numerical simulations demonstrate strong plasmonic resonance, as well as angular selectivity in a broad UV–vis to near-infrared regime. The nanostructured metamaterials in this work, which consist of highly conductive metallic nanopillars in a durable nitride matrix, have the potential to serve as a novel hybrid material platform for highly tailorable nanoscale metamaterial designs, suitable for high temperature optical applications.

Authors:

Wang, Xuejing ^[1]; Jian, Jie ^[1]; Zhou, Zhiguang ^[2]; Fan, Cuncai ^[1]; Dai, Yaomin ^[3]; Li, Leigang ^[1]; Huang, Jijie ^[1]; Sun, Jianing ^[4]; Donohue, Andrea ^[4]; Bermel, Peter ^[2]; Zhang, Xinghang ^[1]; Chen, Hou‐Tong  ^[3];

• Search DOE PAGES for author "Chen, Hou‐Tong"
• Search DOE PAGES for ORCID "0000-0003-2014-7571"

Wang, Haiyan  ^[5]

• Search DOE PAGES for author "Wang, Haiyan"
• Search DOE PAGES for ORCID "0000-0002-7397-1209"

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+ Show Author Affiliations

1. Purdue Univ., West Lafayette, IN (United States). Dept. of Materials Engineering
2. Purdue Univ., West Lafayette, IN (United States). Birck Nanotechnology Center
3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Center for Integrated Nanotechnologies (CINT) and Matrials Physics and Applications Division
4. J.A. Woollam Co. Inc., Lincoln, NE (United States)
5. Purdue Univ., West Lafayette, IN (United States). Dept. of Materials Engineering and Dept. of Electrical and Computer Engineering

Publication Date:

Mon Dec 03 00:00:00 EST 2018

Research Org.:

Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Org.:

USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); US Department of the Navy, Office of Naval Research (ONR); USDOE National Nuclear Security Administration (NNSA)

OSTI Identifier:

1597360

Report Number(s):

LA-UR-19-29818
Journal ID: ISSN 2195-1071

Grant/Contract Number:  

89233218CNA000001; DMR-1565822; DMR-1809520; N000014-15-1-2833

Resource Type:

Accepted Manuscript

Journal Name:

Advanced Optical Materials

Additional Journal Information:

Journal Volume: 7; Journal Issue: 3; Journal ID: ISSN 2195-1071

Publisher:

Wiley

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE; energy sciences; material science; angular selectivity; hybrid plasmonics; optical anisotropy; thermal stability; tilted Ag nanopillars