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Application of the photorefractive effect: particle image velocimetryfrom simultaneous recording of several light sheets and laser Dopplervelocimetry with the Bessel beams,

机译:光折变效应的应用:同时记录多张光片的粒子图像测速和使用贝塞尔光束的激光多普勒测速,

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Abstract: Two new applications of the photorefractive phenomenon to optical velocimetry are described. One of them concerns the laser Doppler velocimetry with photorefractive two-wave mixing. The second application is covered by the particle image velocimetry, where a photorefractive crystal volume and a set of light sheets are used, respectively, for sampling the flow field in depth instantaneously and for illuminating the fluid volume sealed by small particles. !38
机译:摘要:描述了光折变现象在光学测速仪中的两个新应用。其中之一涉及具有光折射两波混合的激光多普勒测速仪。第二种应用是粒子图像测速技术,其中分别使用光折变晶体体积和一组光片来即时采样深度的流场并照亮由小颗粒密封的流体体积。 !38

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