(c) Explain how laser beams can be used to cool a gas of alkali atoms.

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(c) Explain how laser beams can be used to cool a gas of alkali atoms.
(d) In a laser cooling experiment on sodium (23Na), the laser is tuned to resonance with the
D-line transition at 589 nm, which has a radiative lifetime of 16 ns. Estimate the maximum
force that could be applied to each atom, and the deceleration that would result.
Transcribed Image Text:(c) Explain how laser beams can be used to cool a gas of alkali atoms. (d) In a laser cooling experiment on sodium (23Na), the laser is tuned to resonance with the D-line transition at 589 nm, which has a radiative lifetime of 16 ns. Estimate the maximum force that could be applied to each atom, and the deceleration that would result.
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