Colloidal structures and interactions in a nematic liquid crystal
The interactions between different types of colloidal particles are measured and analyzed. We use these interactions to build different self-assembled microstructures, such as dimers, chains, wires, crystals and superstructures. In the experiments we have used different size, different symmetry of c...
| Main Authors: | , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2009
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| _version_ | 1797073828438867968 |
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| author | Škarabota, M Ravnik, M Tkalec, U Humar, M Žumer, S Nychc, A Ognysta, U Nazarenko, V Muševič, I |
| author_facet | Škarabota, M Ravnik, M Tkalec, U Humar, M Žumer, S Nychc, A Ognysta, U Nazarenko, V Muševič, I |
| author_sort | Škarabota, M |
| collection | OXFORD |
| description | The interactions between different types of colloidal particles are measured and analyzed. We use these interactions to build different self-assembled microstructures, such as dimers, chains, wires, crystals and superstructures. In the experiments we have used different size, different symmetry of colloids (elastic dipoles and quadrupoles) and different way of colloidal binding (via localized defects and via entangled defects). We use optical tweezers for directed selfassembly of colloidal particles. Special attention is devoted to the hierarchical superstructures of large and small particles. We show that smaller, submicron colloidal particles are trapped into the topological defect rings or loops, twisting around larger colloidal particles, which are sources of strong nematic deformations. Various possible applications are discussed, especially in photonics and metamaterials. © 2009 SPIE. |
| first_indexed | 2024-03-06T23:27:37Z |
| format | Journal article |
| id | oxford-uuid:6aee27a7-c030-43ca-b025-05425a74c2c3 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T23:27:37Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | oxford-uuid:6aee27a7-c030-43ca-b025-05425a74c2c32022-03-26T19:00:31ZColloidal structures and interactions in a nematic liquid crystalJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:6aee27a7-c030-43ca-b025-05425a74c2c3EnglishSymplectic Elements at Oxford2009Škarabota, MRavnik, MTkalec, UHumar, MŽumer, SNychc, AOgnysta, UNazarenko, VMuševič, IThe interactions between different types of colloidal particles are measured and analyzed. We use these interactions to build different self-assembled microstructures, such as dimers, chains, wires, crystals and superstructures. In the experiments we have used different size, different symmetry of colloids (elastic dipoles and quadrupoles) and different way of colloidal binding (via localized defects and via entangled defects). We use optical tweezers for directed selfassembly of colloidal particles. Special attention is devoted to the hierarchical superstructures of large and small particles. We show that smaller, submicron colloidal particles are trapped into the topological defect rings or loops, twisting around larger colloidal particles, which are sources of strong nematic deformations. Various possible applications are discussed, especially in photonics and metamaterials. © 2009 SPIE. |
| spellingShingle | Škarabota, M Ravnik, M Tkalec, U Humar, M Žumer, S Nychc, A Ognysta, U Nazarenko, V Muševič, I Colloidal structures and interactions in a nematic liquid crystal |
| title | Colloidal structures and interactions in a nematic liquid crystal |
| title_full | Colloidal structures and interactions in a nematic liquid crystal |
| title_fullStr | Colloidal structures and interactions in a nematic liquid crystal |
| title_full_unstemmed | Colloidal structures and interactions in a nematic liquid crystal |
| title_short | Colloidal structures and interactions in a nematic liquid crystal |
| title_sort | colloidal structures and interactions in a nematic liquid crystal |
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