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首页> 外文会议>Diffractive and Holographic Technologies, Systems, and Spatial Light Modulators VI >Comparative investigations on dynamic characteristics of optically addressed liquid crystal spatial light modulators with photosensitive layers based on polyimide doped with dyes and fullerenes
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Comparative investigations on dynamic characteristics of optically addressed liquid crystal spatial light modulators with photosensitive layers based on polyimide doped with dyes and fullerenes

机译：基于掺有染料和富勒烯的聚酰亚胺光敏层的光寻址液晶空间光调制器动态特性的比较研究

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Abstract: Among liquid crystal spatial light modulators (LC-SLMs), LC- SLM with the photosensitive layer based on polyimide is of the highest resolution and of the highest sensitivity. In the present paper resolution, sensitivity, and speed of LC- SLM with polyimide doped with fullerene (FDPI) have been investigated in comparison with those of LC-SLM with dye doped polyimide (DDPI). For the study the holographic technique has been applied using the second harmonic of a pulsed Nd-laser under condition of Raman-Nath diffraction. LC-SLMs with fullerene-doped polyimide has been found to show the highest sensitivity, which has been 10 times higher than that for other LC-SLMs. The effect has been due to a creation of additional donor-acceptor complexes in polyimide doped with fullerene. Diffraction efficiency of LC-SLM with FDPI is less than the one of LC-SLM with DDPI. This fact is related to faster relaxation of holographic grating in FDPI.!39
机译：摘要：在液晶空间光调制器（LC-SLM）中，具有基于聚酰亚胺的光敏层的LC-SLM具有最高的分辨率和最高的灵敏度。在本文中，与掺有染料的聚酰亚胺（DDPI）的LC-SLM相比，研究了富勒烯（FDPI）掺杂的聚酰亚胺LC-SLM的分辨率，灵敏度和速度。为了研究，全息技术已被应用在拉曼-纳特衍射条件下的脉冲Nd激光的二次谐波中。已发现具有富勒烯掺杂的聚酰亚胺的LC-SLM具有最高的灵敏度，比其他LC-SLM的灵敏度高10倍。该效果是由于在富勒烯掺杂的聚酰亚胺中产生了其他供体-受体复合物。具有FDPI的LC-SLM的衍射效率小于具有DDPI的LC-SLM的衍射效率。这个事实与FDPI中全息光栅更快放宽有关!! 39

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