Apparatus for Optical Study of Atomic Hydrogen on the Surface of Liquid Helium

A. P. Mosk*, P. W.H. Pinkse, M. W. Reynolds, T. W. Hijmans, J. T.M. Walraven

*Corresponding author for this work

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Spin-polarized atomic hydrogen adsorbed on the surface of liquid helium is the most promising candidate for the observation of quantum degeneracy in a two-dimensional Bose gas. In this article we describe our experimental apparatus which is being used to realize this goal. The apparatus employs a system of superconducting and iron magnets to supply electron and proton spin-polarized hydrogen to a cold cell (T ≈ 0.1 K) at sufficient flux to compensate recombination losses and attain the regime of two-dimensional quantum degeneracy. The gas in the cell is probed using light resonant with the Lyman-α atomic transition.

Original languageEnglish
Pages (from-to)199-204
Number of pages6
JournalJournal of low temperature physics
Issue number1-2
Publication statusPublished - 1 Dec 1998
Externally publishedYes

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