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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Kočí, Jan | Prague |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Ali, M. A. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Vignolini, Silvia
Max Planck Society
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2023Hierarchically structured bioinspired nanocomposites
- 2020Plant-Inspired Polyaleuritate–Nanocellulose Composite Photonic Filmscitations
- 2020Cellulose Nanocrystal-Templated Tin Dioxide Thin Films for Gas Sensing.
- 2019Enhancing Photoluminescence and Mobilities in WS2 Monolayers with Oleic Acid Ligands.
- 2018Bio-inspired Highly Scattering Networks via Polymer Phase Separationcitations
- 2014Ultrafast nonlinear response of gold gyroid three-dimensional metamaterialscitations
- 2013Hierarchical orientation of crystallinity by block-copolymer patterning and alignment in an electric fieldcitations
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article
Ultrafast nonlinear response of gold gyroid three-dimensional metamaterials
Abstract
We explore the nonlinear optical response of 3D gyroidal metamaterials, which show >10-fold enhancements compared to all other metallic nanomaterials as well as bulk gold. A simple analytical model for this metamaterial response shows how the reflectivity spectrum scales with the metal fill fraction and the refractive index of the material that the metallic nanostructure is embedded in. The ultrafast response arising from the interconnected 3D nanostructure can be separated into electronic and lattice contributions with strong spectral dependences on the dielectric filling of the gyroids, which invert the sign of the nonlinear transient reflectivity changes. These metamaterials thus provide a wide variety of tuneable nonlinear optical properties, which can be utilised for frequency mixing, optical switching, phase modulators, novel emitters, and enhanced sensing. ; This is the author's accepted manuscript. The final version is available from APS in Physical Review Applied at http://journals.aps.org/prapplied/abstract/10.1103/PhysRevApplied.2.044002#fulltext#fulltext.