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Woodcraft, A.; Lucas, P.; Matley, Richard G.; Wong, W. Y. T.

doi:10.1023/a:1021849819891

Cited by 17 publications

(3 citation statements)

References 46 publications

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“…With recent improvements in visualization at cryogenic temperatures [25] the convecton states found here should be observable in experiments. Similar states are expected in water-ethanol mixtures as well.…”

Section: (B) Each Of the Barely Visible Oscillations Inmentioning

confidence: 76%

Simulations of Localized States of Stationary Convection inHe3−He4Mixtures

Batiste

Knobloch

2005

Phys. Rev. Lett.

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Section: (B) Each Of the Barely Visible Oscillations Inmentioning

confidence: 76%

Simulations of Localized States of Stationary Convection inHe3−He4Mixtures

Batiste

Knobloch

2005

Phys. Rev. Lett.

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“…Because of the low thermal conductivity and viscosity, thermal gradients in normal liquid helium create convection currents and density gradients, which are responsible for the scattering and distortion of the laser beam. In fact, this scattering is the basis for optical visualization techniques used for imaging convective flow patterns in liquid helium [15].…”

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confidence: 99%

Kerr Effect in Liquid Helium at Temperatures Below the Superfluid Transition

et al. 2004

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The electro-optical Kerr effect induced by a slowly-varying applied electric field in liquid helium at temperatures below the λ-point is investigated. The Kerr constant of liquid helium is measured to be (1.43±0.02 (stat) ±0.04 (sys) )×10 −20 (cm/V) 2 at T = 1.5 K. Within the experimental uncertainty, the Kerr constant is independent of temperature in the range T = 1.5 K to 2.17 K, which implies that the Kerr constant of the superfluid component of liquid helium is the same as that of normal liquid helium. Our result also indicates that pair and higher correlations of He atoms in the liquid phase account for about 23% of the measured Kerr constant. Liquid nitrogen was used to test the experimental set-up, the result for the liquid nitrogen Kerr constant is (4.38±0.15)×10 −18 (cm/V) 2 . The knowledge of the Kerr constant in these media allows the Kerr effect to be used as a non-contact technique for measuring the magnitude and mapping out the distribution of electric fields inside these cryogenic insulants.

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“…In principle similar experiments should enable one to explore situations in which quantized vortex filaments are introduced, critical superfluid velocities are intentionally exceeded, ultrahigh values of Reynolds and Raleigh numbers are achieved, and the adsorption of impurities to surfaces is considered. Examples of topical problems to which these techniques might be applied include investigations of Rayleigh-Bénard convection [22] and quantum turbulence [23].…”

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confidence: 99%