Optical pumping device and method

Details Optical pumping device and method Optical pumping device and method

2006-02-06

2010-02-02

Pascal, Robert (Department: 2817)

Oscillators

Molecular or particle resonant type

C331S003000, C372S070000

Reexamination Certificate

active

07656241

ABSTRACT:
A method for optical pumping of particles and a device for implementing same. The particles (14) are changed from one long lifetime level to another long lifetime level via a short lifetime level by means of interaction with light radiation (16) emitted by a laser source. Prior to this interaction, the light radiation undergoes depolarization in a direction that is essentially perpendicular to the direction of propagation thereof, so as to reduce the entrapment of particles (14) in the black state.

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patent: 6163636 (2000-12-01), Stentz et al.
patent: 6433921 (2002-08-01), Wu et al.
patent: 6537829 (2003-03-01), Zarling et al.
International Search Report PCT/EP2006/050672 related to subject application.
European Search Report EP05405189 related to subject application.
Jon H. Shirley and R.E. Drullnger “Zeeman Coherences and Dark States in Optically Pumped Cesium Frequency Standards” Precision Electromagnetic Measurements, 1994. Digest., 1994 Conference on Boulder, CO, USA Jun. 27-Jul. 1, 1994, New York NY, USA, IEEE, Jun. 27, 1994, pp. 150-151, XP010123851 ISBN: 0-7803-1984-2 cite dans la demande le document en entier.
Dimarcq et al. (IEEE Transactions on Instrumentation and Measurement, Analysis of the Noise Sources in an Optically Pumped Cesium Beam Resonator vol. 42 (2), Apr. 1993, pp. 115-120).
Article of Giordano et al. (IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, New Design for a High Performance Optically Pumped Cesium Beam Tube 38 (4), Jul. 1991, pp. 350-357).
Article of Dimarcq et al. (Journal of Applied Physics Comparison of Pumping a Cesium Beam Tube With D1 and D2 Lines, 69 (3), Feb. 1991, pp. 1158-1162).

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