液体表面波及其谐波的光衍射效应

罗道斌; 侯瑞宁; 汤锋

液体表面波及其谐波的光衍射效应

1.
陕西科技大学理学院,西安710021

详细信息

通讯作者:
罗道斌(1980-)，男，讲师，研究生，主要从事光学测量研究工作。

中图分类号: TN241;O436.1
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出版历程
- 刊出日期: 2010-03-12

Light diffraction effect from liquid surface wave and its higher harmonic wave

1.
College of Science,Shaanxi University of Science &Technology,Xi’an 710021,China

摘要

摘要: 为了探究液体表面波的波动规律，提出了一种基于激光衍射的探测方法。未扩束的激光束直接斜入射到波动液面，液面波动的强度由电磁式激发器控制、频率由信号发生器控制，用CCD采集光衍射图样并传送到计算机中实时处理。根据波动光学理论，给出了衍射光场和液体表面波之间的解析关系，发现实验现象和理论分析吻合。实验结果表明：该方法具有实时、准确、无损的特点。
- 光衍射 /
- 液体表面波 /
- 声光作用
Abstract: A method of detecting liquid surface wave based on laser diffraction was proposed. A He-Ne laser beam was obliquely incident upon liquid surface wave directly, the wave intensity was controlled by an electromagnetic type exciter and the frequency of the liquid wave was controlled by a signal generator, the laser diffraction patterns from liquid surface waves were collected by a charge-coupled device. The dependence of the diffracted field on the surface waves was derived by theory of wave optics. The experiment result indicates that the proposed method has the advantages of high sensitivity, high speed and non-destructive.
- light diffraction /
- liquid surface wave /
- acousto-optic interaction

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参考文献(1)

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