摘要
The modulation transfer spectroscopy in an ytterbium hollow cathode lamp at 399 nm is measured.The error signal for frequency locking is optimized by measuring the dependences of its slope,linewidth and magnitude on various parameters.Under the optimum condition,the laser frequency at 399 nm can be stabilized.The long-term stability of laser frequency is measured by monitoring the fluorescence signal of the ytterbium atomic beam induced by the locked laser.The laser frequency is shown to be tightly locked,and the stabilized laser is successfully applied to the cooling of ytterbium atoms.
The modulation transfer spectroscopy in an ytterbium hollow cathode lamp at 399 nm is measured. The error signal for frequency locking is optimized by measuring the dependences of its slope, linewidth and magnitude on various parameters. Under the optimum condition, the laser frequency at 399 nm can be stabilized. The long-term stability of laser frequency is measured by monitoring the fluorescence signal of the ytterbium atomic beam induced by the locked laser. The laser frequency is shown to be tightly locked, and the stabilized laser is successfully applied to the cooling of ytterbium atoms.
基金
Project supported by the National Natural Science Foundation of China(Grant No.10774044)
the National Key Basic Research and Development Program of China(Grant No.2010CB922903)
the Science and Technology Commission of Shanghai Municipality of China(Grant No.07JC14019)
Shanghai Pujiang Talent Program of China(Grant No.07PJ14038)
