TY - JOUR
T1 - Hybrid plasmonic Au-TiN vertically aligned nanocomposites
T2 - A nanoscale platform towards tunable optical sensing
AU - Wang, Xuejing
AU - Jian, Jie
AU - Diaz-Amaya, Susana
AU - Kumah, Cindy E.
AU - Lu, Ping
AU - Huang, Jijie
AU - Lim, Daw Gen
AU - Pol, Vilas G.
AU - Youngblood, Jeffrey P.
AU - Boltasseva, Alexandra
AU - Stanciu, Lia A.
AU - O'Carroll, Deirdre M.
AU - Zhang, Xinghang
AU - Wang, Haiyan
N1 - Funding Information:
The work was partially supported by the Basil R. Turner Professorship at Purdue University. The atomic scale TEM/ STEM imaging effort was funded by the U.S. National Science Foundation (DMR-1565822). Sandia National Laboratories is a multi-program laboratory managed and operated by National Technology and Engineering Solutions of Sandia, LLC., a wholly owned subsidiary of Honeywell International, Inc., for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-NA0003525.
Publisher Copyright:
© 2019 The Royal Society of Chemistry.
PY - 2019
Y1 - 2019
N2 - Tunable plasmonic structure at the nanometer scale presents enormous opportunities for various photonic devices. In this work, we present a hybrid plasmonic thin film platform: i.e., a vertically aligned Au nanopillar array grown inside a TiN matrix with controllable Au pillar density. Compared to single phase plasmonic materials, the presented tunable hybrid nanostructures attain optical flexibility including gradual tuning and anisotropic behavior of the complex dielectric function, resonant peak shifting and change of surface plasmon resonances (SPRs) in the UV-visible range, all confirmed by numerical simulations. The tailorable hybrid platform also demonstrates enhanced surface plasmon Raman response for Fourier-transform infrared spectroscopy (FTIR) and photoluminescence (PL) measurements, and presents great potentials as designable hybrid platforms for tunable optical-based chemical sensing applications.
AB - Tunable plasmonic structure at the nanometer scale presents enormous opportunities for various photonic devices. In this work, we present a hybrid plasmonic thin film platform: i.e., a vertically aligned Au nanopillar array grown inside a TiN matrix with controllable Au pillar density. Compared to single phase plasmonic materials, the presented tunable hybrid nanostructures attain optical flexibility including gradual tuning and anisotropic behavior of the complex dielectric function, resonant peak shifting and change of surface plasmon resonances (SPRs) in the UV-visible range, all confirmed by numerical simulations. The tailorable hybrid platform also demonstrates enhanced surface plasmon Raman response for Fourier-transform infrared spectroscopy (FTIR) and photoluminescence (PL) measurements, and presents great potentials as designable hybrid platforms for tunable optical-based chemical sensing applications.
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U2 - 10.1039/c8na00306h
DO - 10.1039/c8na00306h
M3 - Article
AN - SCOPUS:85068496930
VL - 1
SP - 1045
EP - 1054
JO - Nanoscale Advances
JF - Nanoscale Advances
SN - 2516-0230
IS - 3
ER -