Enhanced confocal microscopy imaging of the in-plane switching of cholesteric liquid crystal cells

Enhanced confocal microscopy imaging of the in-plane switching of cholesteric liquid crystal cells
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胆甾型液晶单元面内切换的增强共焦显微镜成像

DOI:
10.1117/12.793147
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发表时间:
2008
期刊:
--
影响因子:
--
通讯作者:
Jewell S
Jewell S
中科院分区:
--
文献类型:
--
作者:
Jewell S

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最近开发的荧光共焦偏振显微镜(FCPM)成像技术允许液晶盒中的指向矢结构的3D图像以亚微米分辨率进行解析。结果呈现在成像上的响应5微米间距的液晶的两个银电极之间施加的面内电场。结果显示,在精致的细节,如何应用的面内场导致的双螺旋倾斜90°内,或紧邻,电极间隙取决于液晶的介电各向异性的符号。此外,对银电极上方的纳米材料进行成像揭示了先前未报道的光学强度增强。这种现象进行了讨论沿着其可能的好处,现有的成像技术。讨论了系统的点扩散函数的影响,并使用射线光学模型来产生模型数据,突出显示这种现象对记录结果的影响。
The recently developed fluorescence confocal polarizing microscopy (FCPM) imaging technique allows 3D images of the director structure in a liquid crystal cell to be resolved with sub-micron resolution. Results are presented on imaging the response of 5-micron pitch cholesteric liquid crystals to an in-plane electric field applied between two silver electrodes. The results show, in exquisite detail, how the application of an in-plane field causes the cholesteric helix to tilt through 90° either within, or immediately adjacent to, the electrode gap depending on the sign of the dielectric anisotropy of the liquid crystal. Furthermore, imaging the cholesteric material above the silver electrodes reveals a previously unreported optical intensity enhancement. This phenomenon is discussed along with its possible benefits to the existing imaging technique. The effects of the point spread function of the system are discussed and a ray optics model is used to produce model data highlighting the influence of this phenomenon on the recorded results.
DOI: 10.1103/physreve.66.051703
发表时间: 2002
期刊: Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子: --
作者:
I. Smalyukh;O. Lavrentovich
通讯作者: O. Lavrentovich
双频手性混合排列向列液晶单元的动态响应。
DOI: 10.1103/physreve.73.011706
发表时间: 2006
期刊: Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子: --
作者:
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DOI: 10.1080/026782998205714
发表时间: 1998
期刊: Liquid Crystals
影响因子: 2.2
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DOI: 10.1080/026782999204705
发表时间: 1999
期刊: Liquid Crystals
影响因子: 2.2
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发表时间: 2005
期刊: The European Physical Journal E
影响因子: --
作者:
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通讯作者: O. Lavrentovich