| 一种新颖的聚合物分散液晶反射光栅 |
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| 引用本文： | 朱腾飞,潘雪丰,陶卫东. 一种新颖的聚合物分散液晶反射光栅[J]. 光电子．激光, 2009, 20(3): 304-307 |
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| 作者姓名： | 朱腾飞 潘雪丰 陶卫东 |
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| 作者单位： | 宁波大学理学院,浙江,宁波,315211;宁波大学理学院,浙江,宁波,315211;宁波大学理学院,浙江,宁波,315211 |
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| 基金项目： | 国家自然科学基金，国家重点基础研究发展规划(973计划)，宁波市自然科学基金，宁波大学教授基金，宁波市人事局4321人才工程资助项目，宁波大学王宽诚幸福基金 |
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| 摘 要： | 在制备液晶光开关的基础上,采用聚合物分散液晶(PDLC)与金属反射光栅压合的方法研制了一种新型反射式液晶光栅器件,并对其响应时间、调制电压、不同偏振态和不同入射角情况下的衍射效率等光电参数进行了测试.结果表明,该液晶反射光栅具有电场可调性,当驱动电压小于特定值时仅观察到常规反射现象,当驱动电压大于40 V时器件出现明显的光栅衍射效应,且1级衍射效率最大可到6.7%.实验讨论了入射光的偏振态、入射角度等因素对PDLC光栅衍射效率的影响,同时测试了该液晶反射光栅的电场响应时间为10 ms.
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| 关 键 词： | 聚合物分散物液晶(PDLC) PDLC反射光栅 电场可调 衍射效率 |
A novel reflective polymer-dispersed liquid crystal grating |
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| ZHU Teng-fei,PAN Xue-feng,TAO Wei-dong. A novel reflective polymer-dispersed liquid crystal grating[J]. Journal of Optoelectronics·laser, 2009, 20(3): 304-307 |
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| Authors: | ZHU Teng-fei PAN Xue-feng TAO Wei-dong |
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| Affiliation: | Faculty of Science of Ningbo University Ningbo 315211;China |
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| Abstract: | A novel reflective polymer-dispersed liquid crystal grating was proposed and fabricated by combining PDLC film on ITO and a metal reflection grating together.We measured its diffraction efficiency with different electrical parameters including driving voltage,response time etc.The results show an electric field modulability on this grating.When the driven voltage is larger than 40 V,the diffraction will be available and the maximal efficiency of its 1st order is 6.7%.We have discussed the effects of differe... |
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| Keywords: | polymer-dispersed liquid crystal(PDLC) PDLC reflection grating electric-modulability diffraction efficiency |
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