ISSN:
1432-0649
Schlagwort(e):
PACS: 32.80B; 67.65
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Physik
Notizen:
Abstract. New diode lasers delivering 50 mW output power at 1083 nm are shown to be efficient sources for optical pumping of helium. They can polarize nuclei in a 3He gas up to M=50% over the pressure range 0.4–1.6 torr. Larger nuclear polarizations M of 3He nuclei, of order 80%, can be obtained in 3He–4He mixtures when the laser frequency is tuned to a 4He line. A standard optical measurement of nuclear polarization M has been extended to the case of 3He–4He mixtures. The effect of various parameters on the steady-state polarization M and on the pumping time T p is discussed.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF01831004
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