ANALYTICAL AND NUMERICAL SOLUTIONS OF THE PARABOLIC EQUATION ISHIMARU FOR THE ELECTROMAGNETIC FIELD, DESCRIBING THE TEMPORARY PROPERTIES OF THE OUTPUT VIDEO-PULSE HETEROGENEOUS NON-DISSIPATIVE MEDIUM

IF 0.5 Q4 PHYSICS, NUCLEAR

Problems of Atomic Science and Technology Pub Date : 2023-12-12 DOI:10.46813/2023-148-052

O. Mazmanishvili

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Abstract

The parabolic Ishimaru equation for the electromagnetic field coherence function, which describes the temporal properties of pulse at the output of inhomogeneous non-dissipative medium, is considered. The generalization of the approach used in the Ishimaru model to describe the temporal evolution of the envelope of the monochromatic electromagnetic video-pulse in homogeneous non-dissipative media is generalized to the case of non-homogeneous nondissipative media. An attempt was made to take into account the influence of the inhomogeneity of the medium on the shape of the resulting pulse. An explicit expression for the Green's function of the problem is obtained and number of numerical experiments are carried out. The paper studies the invariant longitudinal (temporal) properties of the envelope of monochromatic electromagnetic pulses recorded after passing through flat layer of the scattering inhomogeneous medium, i.e. properties that remain unchanged when the environment parameters vary. Examples of numerical experiments are given.

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电磁场抛物线方程 ishimaru 的分析和数值解，描述输出视频脉冲异质非耗散介质的临时特性

研究了电磁场相干函数的抛物线石丸方程，该方程描述了脉冲在非均质非耗散介质输出端的时间特性。石丸模型用于描述均相非耗散介质中单色电磁视频脉冲包络的时间演化，该方法的推广适用于非均相非耗散介质的情况。尝试考虑介质的不均匀性对产生的脉冲形状的影响。论文获得了问题的格林函数的明确表达式，并进行了大量的数值实验。论文研究了单色电磁脉冲通过散射非均质介质平面层后记录的包络的纵向（时间）不变特性，即当环境参数变化时保持不变的特性。给出了数值实验的例子。

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来源期刊

Problems of Atomic Science and Technology 物理-核科学技术

CiteScore

0.70

自引率

50.00%

发文量

审稿时长

2-4 weeks

期刊介绍： The journal covers the following topics: Physics of Radiation Effects and Radiation Materials Science; Nuclear Physics Investigations; Plasma Physics; Vacuum, Pure Materials and Superconductors; Plasma Electronics and New Methods of Acceleration.