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首页> 外文期刊>Physica, B. Condensed Matter >Quantised vortex line visualisation in superfluid helium using low-temperature optics
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Quantised vortex line visualisation in superfluid helium using low-temperature optics

机译:使用低温光学元件对超流氦中的量化涡流线进行可视化

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摘要

An optical probe based on the technique of shadowgraphy is proposed that would enable visualisation of the surface depressions (dimples) above quantised vortex lines in a sample of rotating superfluid liquid helium. An analysis based on the dimple profile calculated by Sonin and Manninen shows that the technique is feasible from the known sensitivity of our shadowgraphy system used to visualise thermal convection rolls. Such a probe could be used to investigate vortex arrays in the presence of appreciable normal component, would provide information on the profile of the dimples, and could be adapted to visualise quantum turbulence. (C) 2003 Elsevier Science B.V. All,rights reserved. [References: 14]
机译:提出了一种基于阴影摄影技术的光学探头,该探头能够可视化旋转超流液态氦样品中量化涡旋线上方的表面凹陷(凹窝)。根据Sonin和Manninen计算的凹痕轮廓进行的分析表明,从用于热对流辊可视化的阴影系统的已知灵敏度来看,该技术是可行的。这种探针可用于在存在明显正常成分的情况下研究涡旋阵列,可提供有关酒窝轮廓的信息,并可用于可视化量子湍流。 (C)2003 Elsevier Science B.V.保留所有权利。 [参考:14]

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