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Optics Communications

Atomic beam deflection by the light of a tunable dye laser

R. Schieder, HERBERT WALTHER, Ludger H. Wöste

Published Aug 1, 1972• 116 citations
Publisher
DOI
10.1016/0030-4018(72)90027-2

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In this paper we report an experimental study on the deflection of a sodium atomic beamby the resonance light pressure of a multi-laser-beam. We have used the multi-laser-beam tointeract with an atomic beam in order to increase the amount of deflection and to reduce con-siderably the need for laser power. A deflection angle of 1.0×10~(-2) rad and the corresponding displacement of 0.72 cm wereobtained. However, only one dye laser was used to illuminate an atomic beam. A method of laser-induced fluorescence of an atomic beam was employed to probe thedeflection of the atomic beam.

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Separation of Li isotopes by laser defection of atomic beams

L. Li, Y. Wang, Minghui Li

Separation of Li isotopes by laser deflection of atomic beams has been carried out. An atomic beam apparatus with a collimating ratio of 450/1 generates are Li atomic beam of 10/sup 9/ atoms/cm/sup 3/ at the oven temperature of 600 /sup 0/C. The CW tunable dye laser crossing the atomic beam at a right angle has a linewidth of 6 MHz and its intensity as the I-cm interaction area is about 70 mW/cm/sup 2/. When the laser frequency is tuned to coincide with /sup 7/Li2/sup 2/P/sub 3/2/F = 3-2/sup 2/S/sub 1/2/ F = 2 transition, /sup 7/Li atoms are deflected from the beam. The deflected atoms are very pure /sup 7/Li and almost do not contain /sup 8/Li. When the laser frequency coincides with any other transition of 2/sup 2/P-2/sup 5/S of both /sup 5/Li and /sup 7/Li, no apparent deflection is observed because of the optical pumping of the hyperfine levels of the 2/sup 2/S/sub 1/2/ ground state.

Chin. Phys.; (United States)•Jan 1, 1983•0 citations
In this paper we report an experimental study on the deflection of a sodium atomic beamby the resonance light pressure of a multi-laser-beam. We have used the multi-laser-beam tointeract with an atomic beam in order to increase the amount of deflection and to reduce con-siderably the need for laser power. A deflection angle of 1.0×10~(-2) rad and the corresponding displacement of 0.72 cm wereobtained. However, only one dye laser was used to illuminate an atomic beam. A method of laser-induced fluorescence of an atomic beam was employed to probe thedeflection of the atomic beam.
Separation of Li isotopes by laser deflection of atomic beams has been carried out. An atomic beam apparatus with a collimating ratio of 450/1 generates are Li atomic beam of 10/sup 9/ atoms/cm/sup 3/ at the oven temperature of 600 /sup 0/C. The CW tunable dye laser crossing the atomic beam at a right angle has a linewidth of 6 MHz and its intensity as the I-cm interaction area is about 70 mW/cm/sup 2/. When the laser frequency is tuned to coincide with /sup 7/Li2/sup 2/P/sub 3/2/F = 3-2/sup 2/S/sub 1/2/ F = 2 transition, /sup 7/Li atoms are deflected from the beam. The deflected atoms are very pure /sup 7/Li and almost do not contain /sup 8/Li. When the laser frequency coincides with any other transition of 2/sup 2/P-2/sup 5/S of both /sup 5/Li and /sup 7/Li, no apparent deflection is observed because of the optical pumping of the hyperfine levels of the 2/sup 2/S/sub 1/2/ ground state.