| Creation of topological vortices using Pancharatnam-Berry phase liquid crystal holographic plates |
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| 作者姓名： | 郭旭岳 钟进展 李鹏 魏冰妍 刘圣 赵建林 |
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| 作者单位： | MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions |
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| 基金项目： | Project supported by the National Natural Science Foundation of China(Grant Nos.11634010,91850118,11774289,61675168,and 11804277);the National Key Research and Development Program of China(Grant No.2017YFA0303800);the Joint Fund of the National Natural Science Foundation of China and the China Academy of Engineering Physics(Grant No.U1630125);the Fundamental Research Funds for the Central Universities,China(Grant Nos.3102018zy036,3102019JC008,and 310201911cx022)。 |
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| 摘 要： | Recently,physical fields with topological configurations are evoking increasing attention due to their fascinating structures both in fundamental researches and practical applications.Therein,topological light fields,because of their unique opportunity of combining experimental and analytical studies,are attracting more interest.Here,based on the Pancharatnam-Berry(PB)phase,we report the creation of Hopf linked and Trefoil knotted optical vortices by using phaseonly encoded liquid crystal(LC)holographic plates.Utilizing scanning measurement and the digital holographic interference method,we accurately locate the vortex singularities and map these topological nodal lines in three-dimensions.Compared with the common methods realized by the spatial light modulator(SLM),the phase-only LC plate is more efficient.Meanwhile,the smaller pixel size of the LC element reduces the imperfection induced by optical misalignment and pixellation.Moreover,we analyze the influence of the incident beam size on the topological configuration.
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| 关 键 词： | TOPOLOGICAL VORTICES Pancharatnam-Berry PHASE liquid crystal PHASE SINGULARITY HOLOGRAM |
Creation of topological vortices using Pancharatnam-Berry phase liquid crystal holographic plates |
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| Xuyue Guo,Jinzhan Zhong,Peng Li,Bingyan Wei,Sheng Liu,Jianlin Zhao.Creation of topological vortices using Pancharatnam-Berry phase liquid crystal holographic plates[J].Chinese Physics B,2020(4):89-93. |
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| Authors: | Xuyue Guo Jinzhan Zhong Peng Li Bingyan Wei Sheng Liu Jianlin Zhao |
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| Affiliation: | (MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions,and Shaanxi Key Laboratory of Optical Information Technology,School of Physical Science and Technology,Northwestern Polytechnical University,Xi'an 710129,China) |
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