Quantised vortex line visualisation in superfluid helium using low-temperature optics

被引：1

作者：

Seddon, JRT ^{[1
]}

Thurlow, MS ^{[1
]}

Lees, MJ ^{[1
]}

Lucas, PGJ ^{[1
]}

机构：

[1] Univ Manchester, Dept Phys & Astron, Manchester M13 9PL, Lancs, England

来源：

PHYSICA B-CONDENSED MATTER | 2003年 / 329卷

关键词：

helium; superfluid; visualisation; vortex;

D O I：

10.1016/S0921-4526(02)01966-X

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

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.

引用

页码：220 / 221

页数：2