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电控聚合物分散液晶全息透镜及特性研究 被引量:3

Diffraction and properties of holographic polymer dispersed liquid crystal switchable lens
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摘要 报道位相型电控聚合物分散液晶(H-PDLC)全息衍射透镜的研制及特性研究,理论上,根据耦合波理论,研究了不同的相分离程度系数下,理想位相型电控聚合物分散液晶(H-PDLC)全息衍射透镜在可见光波长(400—800nm)的衍射特性.实验研制了衍射效率最高为70%的电控H-PDLC变焦透镜样品,研究表明H-PDLC透镜具有优良的成像特性,和快速响应的电控开关特性,在光学成像系统,光通信系统中具有良好的应用前景. A holographic polymer dispersed liquid crystal (H-PDLC) switchable lens is reported. The diffraction efficiency was analyzed at different phase separation coefficients within the visible band (400—800 nm) with the coupled wave theory for a phase-type H-PDLC switchable lens. In our experiments, the maximum efficenc y of 70% was achieved. The H-PDLC switchable lens shows excellent imaging performance and fast response.It is potentially useful in many applications, such as optical communications, optical imaging,e.g.,in digital cameras.
出处 《物理学报》 SCIE EI CAS CSCD 北大核心 2010年第3期1831-1838,共8页 Acta Physica Sinica
基金 国家自然科学基金青年基金项目(批准号:60801041) 上海市科委国际合作项目(批准号:08530707400) 上海市教委一般项目(批准号:09YZ227) 上海市重点实验室 重点学科建设项目(批准号:08DZ2272800 S30502)资助的课题~~
关键词 聚合物分散液晶 变焦透镜 相分离结构系数 成像特性 polymer dispersed liquid crystal focus-switchable lens phase separation coefficient imaging properties
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