Momentum Transfer to Atoms by Absorption and Emission of Radiation
نویسندگان
چکیده
We report on measurement of momentum transfer to an atomic sodium beam by a standingwave laser field. Experiments were performed in two regimes: 1) the regime in which spontaneous emission is negligible; and 2) the regime in which the effects of spontaneous decay dominate the momentum transfer process. In the first regime, we observe diffraction of the atomic beam: the near-resonant Kapitza-Dirac effect. In the second regime, spontaneous emission leads to momentum diffusion. Theoretical predictions are in good agreement with the data in both regimes. Thesis Supervisor: Dr. David E. Pritchard Title: Professor of Physics Dedicated to my sister, Susan Table of
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