A. S. Busarov, A. V. Vinogradov, N. L. Popov, I. A. Artyukov
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引用次数: 0
Abstract
We consider single-beam 3D imaging, i.e., an approach to reconstructing the complex dielectric constant ε(x, y, z) of a sample in question by processing data read from a detector during successive illumination of a stationary object with different Gaussian beams along the same direction (angle). The propagation of Gaussian beams through an object is described using the parabolic wave equation. The equation for single-beam volume imaging is derived, which relates the data obtained on the detector with the values of the dielectric constants ε(x, y, z). As an example of solving this equation using optimization methods, a simplified case of purely real dielectric constant ε(x, z) in two-dimensional space is considered.
我们考虑单光束三维成像,即通过处理探测器在固定物体沿同一方向(角度)的不同高斯光束连续照射期间读取的数据来重建所讨论样品的复介电常数ε(x, y, z)的方法。用抛物波动方程描述高斯光束在物体中的传播。推导了单光束体成像中介电常数ε(x, y, z)与探测器数据之间的关系式,并以二维空间中介电常数ε(x, y, z)的简化情况为例,对该方程进行了优化求解。
期刊介绍:
Bulletin of the Lebedev Physics Institute is an international peer reviewed journal that publishes results of new original experimental and theoretical studies on all topics of physics: theoretical physics; atomic and molecular physics; nuclear physics; optics; lasers; condensed matter; physics of solids; biophysics, and others.