Title :
Asymmetry of microwave spectrum in an optically-pumped Cs atomic beam frequency standard
Author :
Kang, Hoon-Soo ; Kim, Young-Gi ; Jung, Hye-Yeon ; Oh, Cha-Hawn ; Kim, Pill-Soo ; Lee, Ho-Seong
Author_Institution :
Dept. of Phys., Hanyang Univ., Seoul, South Korea
fDate :
12/1/2001 12:00:00 AM
Abstract :
The asymmetry of microwave spectrum was investigated in an optically pumped Cs atomic beam frequency standard. The asymmetry was measured with the polarization state and the detuning of the pumping beam, and analyzed by the master equation based on the density matrix for the D2 transition line. It was found that the pumping transition, F=4→F´=5 can offer a most sensitive detection scheme for the asymmetry. Finally, it was showed that the asymmetry could be compensated by adjusting the state of polarization of the pumping beam as well as the frequency of pumping laser
Keywords :
Zeeman effect; atomic clocks; caesium; compensation; frequency standards; microwaves; optical pumping; polarisation; Cs; Cs atomic beam frequency standard; D2 transition line; Rabi pulling; Ramsey cavity; Zeeman level-splitting; asymmetry compensation; density matrix; detection scheme; magnetic field; microwave spectrum asymmetry; optically pumped frequency standard; polarization state adjustment; pumping beam detuning; pumping laser frequency adjustment; pumping transition; Atom optics; Atomic beams; Atomic measurements; Density measurement; Equations; Laser beams; Laser excitation; Optical polarization; Optical pumping; Optical sensors;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
