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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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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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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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Chen, Yi
Karlsruhe Institute of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2025Recycling carbon fibers by solvolysis: Effects of porosity and process parameterscitations
- 2024Anomalous frozen evanescent phonons
- 2023The composition of environmental microbiota in three tree fruit packing facilities changed over seasons and contained taxa indicative of L. monocytogenes contaminationcitations
- 2023Observation of Chirality‐Induced Roton‐Like Dispersion in a 3D Micropolar Elastic Metamaterialcitations
- 2023Tetramode Metamaterials as Phonon Polarizerscitations
- 2023Tetramode Metamaterials as Phonon Polarizerscitations
- 2023Sustainable powders for laser-assisted additive manufacturing
- 2023Dispersion Engineering by Hybridizing the Back‐Folded Soft Mode of Monomode Elastic Metamaterials with Stiff Acoustic Modes
- 2022Biobased composite powders from PHA, waxes and lignocellulosic biomasses for powder-based additive manufacturing processes
- 2021Cubic metamaterial crystal supporting broadband isotropic chiral phonons
- 2021Bio-Based and Robust Polydopamine Coated Nanocellulose/Amyloid Composite Aerogel for Fast and Wide-Spectrum Water Purificationcitations
- 2020Isotropic Chiral Acoustic Phonons in 3D Quasicrystalline Metamaterials
Places of action
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article
Tetramode Metamaterials as Phonon Polarizers
Abstract
In classical Cauchy elasticity, three-dimensional materials exhibit six eigenmodes of deformation. Following the 1995 work of Milton and Cherkaev, extremal elastic materials can be classified by the number of eigenmodes, N, out of these six that are “easy”. Using Greek number words, this leads to hexamode (N = 6), pentamode (N = 5), tetramode (N = 4), trimode (N = 3), dimode (N = 2), and monomode (N = 1) materials. While hexamode materials are unstable in all regards, the possibility of pentamode metamaterials (“meta-fluids”) has attracted considerable attention throughout the last decade. Here, inspired by the 2021 theoretical work of Wei, Liu, and Hu, microstructured three-dimensional polymer-based tetramode metamaterials are designed and characterized by numerical band-structure calculations, fabricated by laser printing, characterized by ultrasound experiments, and compared to the theoretical ideal. An application in terms of a compact and broadband polarizer for acoustical phonons at ultrasound frequencies is demonstrated.