Ultrafast hyperspectral nanomotion imaging of ballistic and Brownian motion in metamaterial nanostructures
Ultrafast hyperspectral nanomotion imaging of ballistic and Brownian motion in metamaterial nanostructures
The building blocks of nanomechanical photonic metamaterials are perturbed by collisions with atoms of ambient atmospheric gas and by phonons in the crystal lattice of the constituent materials. Between collisions movements are ballistic, becoming diffusive (Brownian) at longer time scales. We show how one may distinguish between these regimes using ultrafast hyperspectral SEM nanomotion imaging and discuss their manifestation in the time-dependent optical properties of the metasurfaces.
Liu, Tongjun
53eb4a71-ea7b-4aa7-b96d-b70c5df1dd63
Ou, Jun-Yu
3fb703e3-b222-46d2-b4ee-75f296d9d64d
Zheludev, Nikolai
32fb6af7-97e4-4d11-bca6-805745e40cc6
MacDonald, Kevin F.
76c84116-aad1-4973-b917-7ca63935dba5
28 September 2020
Liu, Tongjun
53eb4a71-ea7b-4aa7-b96d-b70c5df1dd63
Ou, Jun-Yu
3fb703e3-b222-46d2-b4ee-75f296d9d64d
Zheludev, Nikolai
32fb6af7-97e4-4d11-bca6-805745e40cc6
MacDonald, Kevin F.
76c84116-aad1-4973-b917-7ca63935dba5
Liu, Tongjun, Ou, Jun-Yu, Zheludev, Nikolai and MacDonald, Kevin F.
(2020)
Ultrafast hyperspectral nanomotion imaging of ballistic and Brownian motion in metamaterial nanostructures.
Metamaterials'2020: 14th International Congress on Artificial Materials for Novel Wave Phenomena, Online.
28 Sep - 01 Oct 2020.
3 pp
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
The building blocks of nanomechanical photonic metamaterials are perturbed by collisions with atoms of ambient atmospheric gas and by phonons in the crystal lattice of the constituent materials. Between collisions movements are ballistic, becoming diffusive (Brownian) at longer time scales. We show how one may distinguish between these regimes using ultrafast hyperspectral SEM nanomotion imaging and discuss their manifestation in the time-dependent optical properties of the metasurfaces.
Text
nanomotion imaging of ballistic and brownian motion
- Accepted Manuscript
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Accepted/In Press date: 20 July 2020
Published date: 28 September 2020
Venue - Dates:
Metamaterials'2020: 14th International Congress on Artificial Materials for Novel Wave Phenomena, Online, 2020-09-28 - 2020-10-01
Identifiers
Local EPrints ID: 442762
URI: http://eprints.soton.ac.uk/id/eprint/442762
PURE UUID: f5fccd19-2318-4e71-90b1-342462816a45
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Date deposited: 27 Jul 2020 16:30
Last modified: 17 Mar 2024 05:45
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