Measurement of the trap properties of a magneto-optical trap by a transient oscillation method

Journal Article · Sun May 15 00:00:00 EDT 2005 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.71.053406· OSTI ID:20717779

Kim, Kihwan; Lee, Ki-Hwan; Heo, Myungseon; Jhe, Wonho ^[1]; Noh, Heung-Ryoul ^[2]

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1. School of Physics and Center for Near-field Atom-photon Technology, Seoul National University, Seoul 151-742 (Korea, Republic of)
2. Department of Physics, Chonnam National University, Gwangju 500-757 (Korea, Republic of)

We have measured the trap frequency as well as the damping coefficient of a magneto-optical trap by using a transient oscillation method. The dependence of such trap properties on the various experimental parameters such as the cooling laser intensity, detuning, and magnetic field gradient is investigated. We find that the measured trap frequency is in excellent agreement with the simple rate-equation analysis based on the Doppler cooling theory. In contrast, the damping coefficient is about twice as large as the calculated one, which is attributed to the existence of the sub-Doppler trap near the trap center.

• OSTI ID: 20717779
• Journal Information: Physical Review. A, Vol. 71, Issue 5; Other Information: DOI: 10.1103/PhysRevA.71.053406; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
COOLING
DAMPING
LASER RADIATION
MAGNETIC FIELDS
MAGNETO-OPTICAL EFFECTS
OSCILLATIONS
RADIATION PRESSURE
TRANSIENTS
TRAPS