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Updated: Apr 26, 2026

Trapping of Micro Particles in Nanoplasmonic Optical Lattice

Trapping of Micro Particles in Nanoplasmonic Optical Lattice

Published on: September 5, 2017

Plasmonic nanoclocks.

Hailong Liu¹, Zilong Wang, Jian Huang

¹Centre for Disruptive Photonic Technologies, Nanyang Technological University , Singapore , 637371.

|August 5, 2014

Summary

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We demonstrated that the plasmonic spectra of nanoclock metamaterials can be tuned by altering the "time" displayed. This predictable tuning of near-infrared spectra enables high-order plasmon modes for advanced chemo/biosensor applications.

Area of Science:

Nanophotonics and Metamaterials
Plasmonics
Topological Physics

Background:

Metamaterials offer unique optical properties not found in natural materials.
Plasmonic resonances in nanostructures are sensitive to their geometry and environment.
Topological concepts are increasingly applied to understand and control light-matter interactions.

Purpose of the Study:

To investigate the topological mapping of plasmonic spectra in nanoclock metamaterials.
To demonstrate predictable tuning of near-infrared spectra by controlling the 'time' displayed on nanoclock structures.
To explore the potential of high-order plasmon modes for chemo/biosensor applications.

Main Methods:

Fabrication of nanoclock metamaterial arrays with varying 'time' configurations.

Keywords:

Metamaterials high-order plasmon modes nanoclocks topological map

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Spectroscopic characterization of the near-infrared plasmonic response.

Analysis of plasmon modes, from electric dipole to electric triakontadipole.

Main Results:

Plasmonic spectra were successfully mapped topologically on a torus.
Near-infrared spectra exhibited predictable tuning based on the 'time' parameter.
A rich series of high-order plasmon modes were observed and controlled.

Conclusions:

Nanoclock metamaterials provide a platform for tunable plasmonic responses.
The observed high-order plasmon modes hold promise for sensitive chemo/biosensing.
Topological control offers a new paradigm for designing optical metamaterials.