Nd:LNA laser optical pumping of He-4 - Application to space magnetometers

Details Nd:LNA laser optical pumping of He-4 - Application to space magnetometers Nd:LNA laser optical pumping of He-4 - Application to space magnetometers

Dec 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988jap....64.6615s&link_type=abstract

Journal of Applied Physics (ISSN 0021-8979), vol. 64, Dec. 15, 1988, p. 6615-6617.

Physics

9

Helium, Laser Pumping, Magnetometers, Neodymium Lasers, Optical Pumping, Spacecraft Instruments, Electron Transitions, Interplanetary Magnetic Fields, Planetary Magnetic Fields, Resonance Fluorescence, Signal Transmission, Tunable Lasers

Scientific paper

Results obtained from laser pumping in a helium magnetometer sensor, using a tunable Nd:LNA laser pumped with a high-power diode laser, are reported. It is shown that it was possible to observe both the Hanle signals and the n = 0, p = 1 parametric resonance by monitoring the pumping radiation passing through the cell. As the diode laser-pumped Nd:LNA laser was tuned through the D0, D1, and D2 transitions, three distinct resonance signals were produced. A comparison of the slope of lamp-pumped signals and laser-pumped D1 signals showed that, under otherwise identical conditions, the slope of the D1 laser signal was 45 times greater than the lamp-pumped signal.

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