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A Planar Fresnel Lens in Reflection Type Based on Azo-Dye-Doped Cholesteric Liquid Crystals Fabricated by Photo-Alignment
This paper presents a focusing efficiency and focal length tunable planar Fresnel lens in reflection type based on azo-dye-doped cholesterol liquid crystal film. The Fresnel-like pattern of a pumping beam can be formed by a Sagnac interferometer. When the azo-dye molecules are irradiated by the pump...
Autores principales: | Huang, Bing-Yau, Chen, Ting-Hui, Chen, Tzu-Yeh, Lin, Jia-De, Lin, Tsung-Hsien, Kuo, Chie-Tong |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7764258/ https://www.ncbi.nlm.nih.gov/pubmed/33322782 http://dx.doi.org/10.3390/polym12122972 |
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