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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Plasmonics in Nanocomposite Materials
Presentation Title Plasmonic Compound Nanohole Arrays
Author(s) Yiping Zhao
On-Site Speaker (Planned) Yiping Zhao
Abstract Scope By combining nanosphere lithography with oblique angle deposition, large-area asymmetric compound Ag nanohole arrays with nanorods inside or on top of the nanohole were patterned on substrates. Their properties were investigated both experimentally and by finite-difference-time-domain calculations. A new extraordinary optical transmission (EOT) mode is observed when the polarization direction is aligned with the long axis of the nanorods. Around this resonance wavelength, the real part of the effective permittivity also become zero, demonstrating the epsilon-near-zero (ENZ) property. The new EOT mode is found to be the result from the enhanced local radiation of the nanorods as well as the electromagnetic coupling to the nanoholes. The tunable resonance wavelength, EOT, strong near-field enhancement, and ENZ properties make the structure ideal for sensing applications. In particularly, index sensing and surface-enhanced Raman scattering/surface plasmon resonance (SERS/SPR) dual sensors for microRNA have been realized.
Proceedings Inclusion? Planned:
Keywords Nanotechnology, Thin Films and Interfaces, Modeling and Simulation

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Anisotropic and Shape-selective Plasmonic Nanomaterials: Structure-property Relationships
Electron Transfer and Catalysis in Plasmonic Nanocomposite Systems
Emerging Anisotropic 2D Layered Materials for Plasmonics and Polaritonics
Engineered Plasmonic Nanoparticle Based Detection: Advanced Sensitivity and Selectivity
Fin p-n Heterojunctions for High Brightness Light Emitting Diodes and Lasers at Sub-micron Scale
Gold and Au/Ni and Other Plasmonic Nanoparticles: Using Theory to Understand Metal Recovery and Optical Properties
Nanophotonics for Neural Engineering
Nanoplasmonics and Its Applications in Nanomedicine
Plasmonic Compound Nanohole Arrays
Spectral Enhancement of Dye Molecules Adsorbed on Titania Prepared on Gold Nanoparticles
Understanding Photocarrier and Gas Dynamics to Rationally Design Nano-heterostructured Photocatalysts for CO2 Conversion

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