title: Determination of the rotational constant of the Cs2 0g- (6s + 6p3/2) state by trap loss spectroscopy.
abstract: we demonstrated a high sensitive trap-loss spectroscopy technique by modulating fluorescence of cold atoms in magneto-optical trap, which allow a direct spectroscopy detection of the rovibrational levels with a very weak transition probability. The low-lying vibrational spectroscopy of upsilon = 3 approximately 17 of Cs(2) 0g- pure long-range state have been observed with rotational structures, which are well resolved up to J = 8. The rotational constants are obtained by fitting experimental data to a nonrigid rotation model.
authors: State Key Laboratory of Quantum Optics and Quantum Optics Devices, College of Physics and Electronics Engineering, Shanxi University, Taiyuan 030006 P.R.China.
authors: Jie
authors: J
authors: Ma
authors: Jizhou
authors: J
authors: Wu
authors: Yanting
authors: Y
authors: Zhao
authors: Liantuan
authors: L
authors: Xiao
authors: Suotang
authors: S
authors: Jia
mesh_terms: D005453:Fluorescence; D052898:Optical Tweezers; D012399:Rotation; D013057:Spectrum Analysis / Q000379:methods*