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Spectroscopy of Triplet state coupling of Yb I : 3 P 1 - 3 S 1 680nm

Spectroscopy of Triplet state coupling of Yb I : 3 P 1 - 3 S 1 680nm. 2009. 8. 17 이선경. Energy level. Ladder type atom ( 1S0-3P1-3S1) Driving field : 556, 680 nm Fluorescence : 650, 680, 770 nm (branching ratio 1: 3: 5) Pumping atoms from 1S0 to 3P1 and from 3P1 to 3S1

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Spectroscopy of Triplet state coupling of Yb I : 3 P 1 - 3 S 1 680nm

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  1. Spectroscopy of Triplet state coupling of Yb I :3P1-3S1 680nm 2009. 8. 17 이선경

  2. Energy level • Ladder type atom ( 1S0-3P1-3S1) • Driving field : 556, 680 nm • Fluorescence : 650, 680, 770 nm (branching ratio 1: 3: 5) • Pumping atoms from 1S0 to 3P1 and from 3P1 to 3S1 • Interaction time in atomic beam • v=300m/s, ∆t~30μs, • 3S1 linewidth ~10MHz • I~14mW, Is~4mW/cm2, I/Is > 10 3S1 5 1 3 λ=770nm λ=680nm λ=650nm 3P2 3P1 3P0 λ=556nm 1S0

  3. Experimental setup 556nm Atomic Beam ECDL 770nm ECDL 680nm 680nm Iop=54mA Top=18.274(kΩ) TH10K ~13°C 770nm Iop=64mA Top=10.01(kΩ) TH10K ~25°C

  4. Fluorescence spectrum • 556 Laser locked

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