Abstract
Actively tunable optical transmission through artificial metamaterials holds great promise for next-generation nanophotonic devices and metasurfaces. Plasmonic nanostructures and phase change materials have been extensively studied to this end due to their respective strong interactions with light and tunable dielectric constants under external stimuli. Seamlessly integrating plasmonic components with phase change materials, as demonstrated in the present work, can facilitate phase change by plasmonically enabled light confinement and meanwhile make use of the high sensitivity of plasmon resonances to the variation of dielectric constant associated with the phase change. The hybrid platform here is composed of plasmonic indium-tin-oxide nanorod arrays (ITO-NRAs) conformally coated with an ultrathin layer of a prototypical phase change material, vanadium dioxide (VO2), which enables all-optical modulation of the infrared as well as the visible spectral ranges. The interplay between the intrinsic plasmonic nonlinearity of ITO-NRAs and the phase transition induced permittivity change of VO2 gives rise to spectral and temporal responses that cannot be achieved with individual material components alone.
| Original language | English |
|---|---|
| Pages (from-to) | 693-701 |
| Number of pages | 9 |
| Journal | ACS Nano |
| Volume | 11 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jan 24 2017 |
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Keywords
- atomic layer deposition
- indium-tin oxide (ITO)
- phase change
- plasmonics
- ultrafast spectroscopy
- vanadium dioxide (VO)
ASJC Scopus subject areas
- Materials Science(all)
- Engineering(all)
- Physics and Astronomy(all)
Cite this
Conformal Coating of a Phase Change Material on Ordered Plasmonic Nanorod Arrays for Broadband All-Optical Switching. / Guo, Peijun; Weimer, Matthew S.; Emery, Jonathan D.; Diroll, Benjamin T.; Chen, Xinqi; Hock, Adam S.; Chang, Robert P. H.; Martinson, Alex B.F.; Schaller, Richard D.
In: ACS Nano, Vol. 11, No. 1, 24.01.2017, p. 693-701.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Conformal Coating of a Phase Change Material on Ordered Plasmonic Nanorod Arrays for Broadband All-Optical Switching
AU - Guo, Peijun
AU - Weimer, Matthew S.
AU - Emery, Jonathan D.
AU - Diroll, Benjamin T.
AU - Chen, Xinqi
AU - Hock, Adam S.
AU - Chang, Robert P. H.
AU - Martinson, Alex B.F.
AU - Schaller, Richard D
PY - 2017/1/24
Y1 - 2017/1/24
N2 - Actively tunable optical transmission through artificial metamaterials holds great promise for next-generation nanophotonic devices and metasurfaces. Plasmonic nanostructures and phase change materials have been extensively studied to this end due to their respective strong interactions with light and tunable dielectric constants under external stimuli. Seamlessly integrating plasmonic components with phase change materials, as demonstrated in the present work, can facilitate phase change by plasmonically enabled light confinement and meanwhile make use of the high sensitivity of plasmon resonances to the variation of dielectric constant associated with the phase change. The hybrid platform here is composed of plasmonic indium-tin-oxide nanorod arrays (ITO-NRAs) conformally coated with an ultrathin layer of a prototypical phase change material, vanadium dioxide (VO2), which enables all-optical modulation of the infrared as well as the visible spectral ranges. The interplay between the intrinsic plasmonic nonlinearity of ITO-NRAs and the phase transition induced permittivity change of VO2 gives rise to spectral and temporal responses that cannot be achieved with individual material components alone.
AB - Actively tunable optical transmission through artificial metamaterials holds great promise for next-generation nanophotonic devices and metasurfaces. Plasmonic nanostructures and phase change materials have been extensively studied to this end due to their respective strong interactions with light and tunable dielectric constants under external stimuli. Seamlessly integrating plasmonic components with phase change materials, as demonstrated in the present work, can facilitate phase change by plasmonically enabled light confinement and meanwhile make use of the high sensitivity of plasmon resonances to the variation of dielectric constant associated with the phase change. The hybrid platform here is composed of plasmonic indium-tin-oxide nanorod arrays (ITO-NRAs) conformally coated with an ultrathin layer of a prototypical phase change material, vanadium dioxide (VO2), which enables all-optical modulation of the infrared as well as the visible spectral ranges. The interplay between the intrinsic plasmonic nonlinearity of ITO-NRAs and the phase transition induced permittivity change of VO2 gives rise to spectral and temporal responses that cannot be achieved with individual material components alone.
KW - atomic layer deposition
KW - indium-tin oxide (ITO)
KW - phase change
KW - plasmonics
KW - ultrafast spectroscopy
KW - vanadium dioxide (VO)
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U2 - 10.1021/acsnano.6b07042
DO - 10.1021/acsnano.6b07042
M3 - Article
VL - 11
SP - 693
EP - 701
JO - ACS Nano
JF - ACS Nano
SN - 1936-0851
IS - 1
ER -