用光散射探测氦界面：从流体力学到统计物理
Probing helium interfaces with light scattering : from fluid mechanics to statistical physics
摘要：
我们研究了氦滴在两种物理情况下的形成。在第一种方法中，液滴通过快速的氦蒸气流从超流体或正常液体中雾化。在第二种情况下，在氦冷凝过程中，在多孔玻璃内部形成正常液体的液滴。背景下，这些实验的目的和结果进行了审查，重点是氦光散射的特异性。特别是，我们讨论了如何，出于不同的原因，接近统一的折射率的氦允许在这两种情况下，以尽量减少多次散射的问题，并获得结果，这将是不可能得到使用其他流体。
英文摘要：
We have investigated the formation of helium droplets in two physical situations. In the first one, droplets are atomised from superfluid or normal liquid by a fast helium vapour flow. In the second, droplets of normal liquid are formed inside porous glasses during the process of helium condensation. The context, aims, and results of these experiments are reviewed, with focus on the specificity of light scattering by helium. In particular, we discuss how, for different reasons, the closeness to unity of the index of refraction of helium allows in both cases to minimise the problem of multiple scattering and obtain results which it would not be possible to get using other fluids.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
