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CaIon.md

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Ca离子主要能级
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Ca Ion Energy Level

Groud level: 2 S 1 / 2

Doppler Cooling

  • 397nm major pump, dipole.
  • 2 P 1 / 2 lifetime = 7ns: so short that velocity could be regarded as constant
    • 6.5% probability to 2 D 3 / 2
    • 93.5% back to g.s.
  • 866nm repumps 2 D 3 / 2 to 2 P 1 / 2