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一种液晶光开关的制备研究

Study on A Liquid Crystal Optical Switching Device
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摘要 提出了一种新型的液晶光开关器件,它采用全息技术,由向列相液晶和高分子预聚物充分混合,在一定条件下发生定域光聚合反应形成,理论和实验表明,采用一定的材料配方和工艺,才能获得理想的光开关器件。此种器件具有显著的电控开关特性,由于液晶材料的介入,使得器件的折射率调制度可以通过外加电场进行改变,从而其输出光也会随着电场的改变而改变,当电场大于10V时,出射光只有入射光的5%。同时,由于液晶具有大的电光系数、快的响应速度等优点,使得液晶光开关器件在光通信技术中的有非常好的应用前景。 A novel liquid crystal optical switching device is investigated in this paper. Utilizing holographic technique, photosensitive monomers and nematic liquid crystal are mixed together and the phase separation between monomers and liquid crystals was induced by laser beam interference bright patterns and form grating device. According to optical theories and through many experiments, the ideal optical switching device can be obtained when the photosensitive monomers are mixed together with nematic liquid crystal with certain weight ratio. The emergent light intensity of liquid crystal grating can be modulated by electric field because of the electric control characteristics of liquid crystal. The output light is only 5%of the incident light when the electric field is more than 10V. Besides, the liquid crystal also has the advantages of large electro-optic coefficient and fast response speed. Consequently, the liquid crystal grating has immense potential productivity in passive optical communication device such as optical switching and variable optical attenuator.
出处 《科技通报》 北大核心 2015年第11期134-137,共4页 Bulletin of Science and Technology
基金 国家自然科学基金(批准号:60736042 11174274 11174279 61205021 11204299)资助项目
关键词 光通信 液晶技术 光开关 光栅 optical communication liquid crystal technology optical switching grating
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  • 1宋静,郑致刚,刘永刚,李静,宣丽.含氟单体材料对全息聚合物分散液晶Bragg光栅电光特性的影响[J].液晶与显示,2006,21(5):443-446. 被引量:9
  • 2TANAKA K,KATO K,DATE M.Fabrication of holographic polymer dispersed liquid crystal (HPDLC) with high reflection efficiency[J].Jpn.J.Appl.Phys.,1999,38:277-278.
  • 3LAWRENCE H,DOMASH,TONY C,et al..Switchable-focus lenses in holographic polymer-dispersed liquid crystal[J].SPIE,1996,2689:188-194.
  • 4XIANYU H,QI J,COHN R F,et al..Total-internal-reflection mode in holographic polymer dispersed liquid crystals[J].Optics Letters,2003,28(10):792-794.
  • 5DOMASH L H,CRAWFORD G P,ASHEAD C,et al..Holographic PDLC for photonic applications[J].SPIE,2000,4107:46-58.
  • 6SUTHERLAND R L,NATARAJAN L V,TONDIGLIA V P.Bragg gratings in an acrylate polymer consisting of periodic polymer-dispersed liquid-crystal planes[J].Chem.Mate.,1993,5:1533-1538.
  • 7NATARAJAN L V,SUTHERLAND R L,TATARAJAN V P,et al..Electrically switchable volume gratings in polymer-dispersed liquid crystals[J].Appl.Phys.Lett.,1994,64(9):1074-1076.
  • 8BUNNING T J,NATARAJAN L V,TATARAJAN V P,et al..Holographic polymer-dispersed liquid crystals[J].Annu.Rev.Mater.Sci.,2000,30:83-115.
  • 9MUCHA M.Polymer as an important component of blends and composites with liquid crystals[J].Prog.Polym.Sci.,2003,28:837-873.
  • 10KLOSTERMAN J,NATARAJAN L V,TONDIGLIA V P,et al..The influence of surfactant in reflective HPDLC gratings[J].Polymer,2004,45:7213-7218.

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