论文标题
X射线参数下转换中极化依赖性的测量值
Measurements of Polarization Dependencies in Parametric Down-Conversion of X-rays into Ultraviolet Radiation
论文作者
论文摘要
我们介绍了X射线信号光子的极化依赖性的测量值，该光子由X射线的参数下转换为紫外线辐射而产生的X射线信号光子。结果与非线性的经典模型表现出明显的差异，但在定性上与非线性相互作用的新开发的量子机械理论一致。我们的工作表明，正如先前的工作中所建议的那样，通过使用X射线和更长的波长辐射之间的非线性相互作用，通过使用非线性相互作用来重建晶体中的原子量表电荷分布，这需要对产生的X射线信号光束极化的知识。这项工作中介绍的结果表明了一种用于研究晶体中肿大功能性质的新方法。
We present measurements of the polarization dependencies of the x-ray signal photons generated by the effect of parametric down-conversion of x rays into ultraviolet radiation. The results exhibit pronounced discrepancies with the classical model for the nonlinearity but qualitatively agree with a newly developed quantum mechanical theory for the nonlinear interaction. Our work shows that the reconstruction of the atomic scale charge distribution of valence electrons in crystals by using nonlinear interaction between x rays and longer wavelength radiation, as was suggested in previous works, requires the knowledge of polarization of the generated x-ray signal beam. The results presented in this work indicate a new methodology for the study of properties of the Wannier functions in crystals.
