| 胆甾相液晶可见光布拉格反射实验 |
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| 引用本文： | 阮亮,丁慎训,杨秀珍.胆甾相液晶可见光布拉格反射实验[J].大学物理,1998,17(8):26-28. |
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| 作者姓名： | 阮亮 丁慎训 杨秀珍 |
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| 作者单位： | 清华大学现代应用物理系,北京,100084 |
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| 摘 要： | 胆甾相液晶可见光反射行为，在某种意义上与晶体粉末样品Ｘ光衍射相似，本主要提供一个巧妙而又直观的布拉格反射实验方法，并测量胆甾相结构周期－螺距与温度的关系，进而揭示胆甾相液晶热色效应的机理。
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| 关 键 词： | 胆甾相液晶 布拉格反射 可见光 液晶 |
AN EXPERIMENT ON THE BRAGG REFLECTION OF LIGHT FROM A CHOLESTERIC LIQUID CRYSTAL |
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| Ruan Liang,Ding Shenxan,Yang Xiuzhen.AN EXPERIMENT ON THE BRAGG REFLECTION OF LIGHT FROM A CHOLESTERIC LIQUID CRYSTAL[J].College Physics,1998,17(8):26-28. |
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| Authors: | Ruan Liang Ding Shenxan Yang Xiuzhen |
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| Abstract: | Light scattering from a cholesteric liquid crystal behaves in a manner analogous to X-ray scattering from solid powder samples. It is provided an experiment on the Bragg reflection of light, the relationship between period of a cholesteric structure-pitch and temperature is measured and the mechanism of themal-colur effect from a cholesteric liquid crystal is revealed. |
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| Keywords: | cholesteric liquid crystal Bragg reflection |
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