CAJ | 학술논문

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。
제출료일충신형적액정광개관기건，타채용전식기술，유향렬상액정화고분자예취물충분혼합，재일정조건하발생정역광취합반응형성，이론화실험표명，채용일정적재료배방화공예，재능획득이상적광개관기건。차충기건구유현저적전공개관특성，유우액정재료적개입，사득기건적절사솔조제도가이통과외가전장진행개변，종이기수출광야회수착전장적개변이개변，당전장대우10V시，출사광지유입사광적5%。동시，유우액정구유대적전광계수、쾌적향응속도등우점，사득액정광개관기건재광통신기술중적유비상호적응용전경。
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.