排斥库仑场光剥离显微镜
Photodetachment Microscope with Repulsive Coulomb Field
摘要：
研究负离子光剥离过程中的高相干电子波，为发展高分辨全息电子显微术提供了物理基础。干扰模式被认为是在稳态波方法的框架。在半经典近似中，出射波的振幅沿轨迹缓慢变化。利用非齐次薛定谔方程，给出了电子与负离子光剥离的量子描述。它的渐近解用格林函数表示，格林函数对均匀电场和库仑场都有精确的表示。结果表明，在离离子较近的距离内，排斥库仑场对干涉图样的放大是有效的。正如这种情况所示，第一次可以通过全局半经典近似或更粗略地通过简单均匀场近似来计算渐进区域中的干涉图样。讨论了新的建议和可能的参数的实验测量方案的效果。
英文摘要：
Investigation of electronic waves with high coherence in photodetachment of a negative ion gives a physical basis to develop the holographic electronic microscopy with high resolution. The interference pattern is considered in the framework of steady-state wave approach. In semiclassical approximation, an outgoing wave is described by the amplitude slowly varying along a trajectory. Quantum description of electron photodetachment from negative ion is formulated with the help of the inhomogeneous Schrödinger equation. Its asymptotic solution is expressed in terms of the Green function that has exact expression for the homogeneous electric field and the Coulomb field. It is demonstrated that repulsive Coulomb field is effective for magnification of the interference pattern at a short distance from an ion. For the first time, as shown for this case, the interference pattern in asymptotic area can be calculated by means of global semiclassical approximation or, a little more roughly, by simple uniform field approximation. New proposals and possible parameters for experimental measurement scheme for the effect are discussed.
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