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Microscopic characterisation of self-assembled colloidal particles in electrohydrodynamic convection of a low-birefringence nematic liquid crystal
| Title: | Microscopic characterisation of self-assembled colloidal particles in electrohydrodynamic convection of a low-birefringence nematic liquid crystal |
| Authors: | Nishioka, Yoriaki Browse this author | | Kobayashi, Fumiaki Browse this author | | Sakurai, Nobutaka Browse this author | | Sasaki, Yuji Browse this author →KAKEN DB | | Orihara, Hiroshi Browse this author →KAKEN DB |
| Keywords: | liquid-crystal colloids | | electrohydrodynamic convection | | Nematic liquid crystals | | electrokinetics |
| Issue Date: | Apr-2016 |
| Publisher: | Taylor & Francis |
| Journal Title: | Liquid crystals |
| Volume: | 43 |
| Issue: | 4 |
| Start Page: | 427 |
| End Page: | 435 |
| Publisher DOI: | 10.1080/02678292.2015.1117146 |
| Abstract: | Electrokinetics of small particles immersed in anisotropic fluids is attracting attention in recent years. Here we focus on microscopic appearance of single as well as self-assembled particles moving in the electrohydrodynamic convection (EHC) of a nematic liquid crystal with low birefringence. Characterisation of the birefringent properties is made by polarised light microscopy under different illumination conditions. Because of the small optical anisotropy, the director distortion around the particles clearly exhibits distinctive colours on both sides depending on the height in the cell. The observation can be explained as the change in the net phase retardation of the light. It is also found that a caterpillar-like motion is possible by tuning temperature, although the horizontal size of the EHC rolls is relatively narrow. |
| Rights: | This is an Accepted Manuscript of an article published by Taylor & Francis in Liquid Crystals on Apr 2016, available online: http://www.tandfonline.com/10.1080/02678292.2015.1117146. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/64910 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 佐々木 裕司
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