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针对向列型液晶光阀响应速度慢的问题,提出了一种工作在可见光波段的切变聚合物网络液晶光阀(SLCLV)。通过测定其电光响应,这种切变聚合物网络液晶(SLC)的响应时间可达几个毫秒,比相同条件下的向列型液晶的响应速度提高了一个数量级,而且对厚度依赖性小。通过理论分析,提出了SLC的工作原理,介绍了工作在可见光波段的反射式电寻址SLCLV的制作过程。器件的制作工艺简单,可靠性高。在可见光-可见光图像转换系统中,测得这种液晶光阀的帧频可达500Hz,分辨率为8lp/mm。如果能进一步提高制作工艺,这种液晶光阀在高速光学信息处理方面有广阔的应用前景。
In order to solve the problem of slow response of nematic liquid crystal light valve, a novel polymer network liquid crystal light valve (SLCLV) which operates in the visible light band is proposed. By measuring its electro-optic response, the response time of this slipped polymer network liquid crystal (SLC) can be several milliseconds, which is one order of magnitude faster than the nematic liquid crystal under the same conditions and less dependent on the thickness. Through the theoretical analysis, the working principle of SLC is proposed, and the fabrication process of reflective electrical addressable SLCLV operating in the visible wavelength band is introduced. Device production process is simple, high reliability. In visible light - visible light image conversion system, measured the liquid crystal light valve frame rate up to 500Hz, a resolution of 8lp / mm. If we can further improve the production process, the liquid crystal light valve in high-speed optical information processing has broad application prospects.