用模非线性模型计算高强度聚焦超声光束的场

2022 Days on Diffraction (DD) Pub Date : 2022-05-30 DOI:10.1109/DD55230.2022.9960964

V. A. Gusev

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引用次数: 0

摘要

建立了计算高强度聚焦有界声波束场的模非线性模型。得到了非线性衍射问题的精确解。比较了衍射和非线性对光束波形的影响。实验结果表明，随着特征光束宽度的减小，会形成一系列短的高振幅正脉冲。

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Calculation of the field of a high-intensity focused ultrasonic beam using the modular nonlinearity model

A model of modular nonlinearity is developed for calculating the field of a high-intensity focused bounded acoustic beam. Exact solution of a nonlinear diffraction problem is obtained. The effects of diffraction and nonlinearity on the wave profile of the beam are compared. It is shown that as the characteristic beam width decreases, a sequence of short positive high-amplitude pulses is formed, which was observed experimentally.

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$2022 Days on Diffraction (DD)$

2022 Days on Diffraction (DD)

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