论文标题
在中间衍射状态下以倾斜发生率的相光栅的光衍射
Light diffraction from a phase grating at oblique incidence in the intermediate diffraction regime
论文作者
论文摘要
我们通过实验表征相位光栅在屏幕上的衍射最大值的位置，以倾斜发射（所谓的平面衍射或圆锥形衍射）为激光。我们讨论了平面衍射几何形状的一般情况，并得出了衍射最大值位置的基本方程，尤其是其角度依赖性。与先前报道的工作相反[Jetty等，Am。 J. Phys。 80，972（2012）]，我们的推理仅基于能量和动量保护。我们发现我们与实验的理论预测有很好的一致性。提供了对衍射最大位置，衍射顺序数量和衍射效率的详细讨论。我们评估了中子物质波的现象实验测试的可行性。
We experimentally characterize the positions of the diffraction maxima of a phase grating on a screen, for laser light at oblique incidence (so-called off-plane diffraction or conical diffraction). We discuss the general case of off-plane diffraction geometries and derive basic equations for the positions of the diffraction maxima, in particular for their angular dependence. In contrast to previously reported work [Jetty et al., Am. J. Phys. 80, 972 (2012)], our reasoning is solely based on energy- and momentum conservation. We find good agreement of our theoretical prediction with the experiment. A detailed discussion of the diffraction maxima positions, the number of diffraction orders, and the diffraction efficiencies is provided. We assess the feasibility of an experimental test of the phenomenon for neutron matter waves.
