Obtaining polarized liquid helium 3 from optically oriented gas
- 1 January 1988
- journal article
- Published by EDP Sciences in Journal de Physique
- Vol. 49 (1) , 1-6
- https://doi.org/10.1051/jphys:019880049010100
Abstract
Spin polarized liquid helium three can be obtained by liquefaction of a gas polarized by laser optical pumping. We show that this method can lead to nuclear polarizations exceeding 40 % in a liquid at about 400 mK and almost zero pressure. The relaxation time of the orientation is a few minutes, comparable to the relaxation time of weakly polarized bulk liquid. The NMR signals given by the liquid are strongly shifted in frequency ; this provides a precise and convenient way to measure the polarization and to follow the motion of the liquid inside the experimental cellKeywords
This publication has 19 references indexed in Scilit:
- Nuclear Polarization and Heat Conduction Changes in Gaseous 3 HeEurophysics Letters, 1987
- Relaxation nucléaire de 3He gazeux sur H2 solideJournal de Physique, 1985
- Nuclear polarization through optical pumping of gaseous 3He below 1 KJournal de Physique Lettres, 1983
- Polarisation nucléaire de 3He gazeux par pompage optique laserJournal de Physique Lettres, 1982
- Spin Polarization of Liquidby Rapid Melting of Polarized SolidPhysical Review Letters, 1979
- Observation of a highly polarized liquid 3He stateJournal de Physique Lettres, 1979
- Phase transitions of spin polarized 3He : a thermodynamical nuclear orientation technique ?Journal de Physique, 1979
- L'hélium trois polarisé : un « nouveau » fluide quantique ?Journal de Physique, 1979
- Dynamic Polarization of Liquid Helium threePhysical Review Letters, 1967
- Polarization ofGas by Optical PumpingPhysical Review B, 1963