A new type of ferroelectric liquid crystal (FLC) is considered, where the reorientation of the director (main optical axes) at the interaction of an electric field with the FLC's spontaneous polarization is due to the movement of spatially localized waves with a stationary profile: solitons arise at the transition due to the Maxwellian mechanism of energy dissipation. Under certain conditions, the appearance of such waves leads to the formation of a structure of transient domains, and as a consequence, to the scattering of light. The Maxwellian mechanism of energy dissipation allows one to reduce the electric field strength at which the maximum efficiency of light scattering is achieved down to 2-3 V/μm and to increase the frequency of light modulation up to 3-5 kHz. Intensive bistable light scattering in an electro-optical cell filled with a specially designed helix-free FLC was studied, and a stable scattering state can be switched on and off for a few tens of microseconds and memorized for a few tens of seconds.
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机译:考虑了一种新型的铁电液晶(FLC),其中电场与FLC的自发极化相互作用时指向矢(主光轴)的重新定向是由于具有固定轮廓的空间局部波的运动引起的:孤子是由于麦克斯韦能量耗散机制而在过渡时产生的。在某些条件下,这种波的出现导致形成瞬态域的结构,并因此导致光的散射。麦克斯韦能量耗散机制可以降低电场强度,在该电场强度下,光散射的最大效率可降低至2-3 V /μm,并可以将光调制频率提高至3-5 kHz。研究了在装有特殊设计的无螺旋FLC的电光电池中的强双稳态光散射,可以将稳定的散射状态打开和关闭几十微秒,并存储几十秒。
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