Chirality, birefringence, and polarization effects in α-quartz studied by resonant elastic x-ray scattering
Chirality, birefringence, and polarization effects in α-quartz studied by resonant elastic x-ray scattering
复制标题
通过共振弹性 X 射线散射研究 α-石英的手性、双折射和偏振效应
DOI：
10.1103/physrevb.89.224108
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发表时间：
2014
影响因子：
3.7
通讯作者：
and Stephen P. Collins
中科院分区：
文献类型：
--
作者：
Yves Joly;Yoshikazu Tanaka;Delphine Cabaret;and Stephen P. Collins
在共振弹性x射线散射实验中，我们发现对映体对光偏振质量非常敏感。其中，（001）反射对名义圆偏振光中包含的一小部分线性分量显示出非常强的灵敏度。这个分数在每个对映体的记录强度的角依赖性之间引起一个重要的相位差。因此，我们能够对谐振散射的各个方面进行建模，并确定主要物理特性，提取晶体手性，并获得非常精确的Stokes偏振参数值。双折射和高阶电跃迁的影响也被量化，结果表明，相比之下，它们可以忽略不计。
We show that enantiomers are extremely sensitive to the quality of the light polarization in resonant elastic x-ray scattering experiments. In, the (001) reflection shows a very strong sensitivity to a small fraction of linear component included in nominally circularly polarized light. This fraction induces an important phase difference between the angular dependence of the recorded intensity from each enantiomer. We are thus able to model all aspects of the resonant scattering and determine the dominant physics, extract the crystal chirality, and obtain very precise values for the Stokes polarization parameters. Effects of birefringence and of higher-order electric transitions are also quantified and it is shown that in comparison they are negligible.