Measurement of the trap parameters of a magneto-optical trap by external periodic perturbation

Journal Article · Mon Mar 15 00:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.033425· OSTI ID:21408459

Moon, Geol; Heo, Myoung-Sun; Kim, Yonghee; Jhe, Wonho ^[1]; Noh, Heung-Ryoul ^[2]

---

1. School of Physics, Seoul National University, Seoul 151-747 (Korea, Republic of)
2. Department of Physics, Chonnam National University, Gwangju 500-757 (Korea, Republic of)

We report a simple method for trap parameter measurement by realizing forced harmonic oscillation in a magneto-optical trap (MOT). Through the resonance curve of the vibrational amplitude of the harmonic oscillation on the driving frequency of the laser intensity, we measured the damping coefficient and trap frequency of trapped atoms in the MOT under various conditions and compared them with those obtained from the parametric resonance. In particular, we report a significant effect of a transverse laser on one-dimensional harmonic oscillation. This effect is expected to explain the discrepancies in other previous experiments between the experimental and theoretical results.

• OSTI ID: 21408459
• Journal Information: Physical Review. A, Vol. 81, Issue 3; Other Information: DOI: 10.1103/PhysRevA.81.033425; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
AMPLITUDES
ATOMS
DAMPING
DIAGRAMS
DISTURBANCES
LASERS
ONE-DIMENSIONAL CALCULATIONS
OSCILLATIONS
PERIODICITY
PERTURBATION THEORY
RESONANCE
TRAPPING
TRAPS
INFORMATION
VARIATIONS