The primary frequency standard LPTF-JPO employs a caesium thermal beam, and optical
pum** techniques. We present the main parts of the design. The short-term stability is …

Ramsey fringes observed in an atomic fountain are formed by the superposition of the
individual atomic signals. Due to the atomic beam residual temperature, the atoms have …

We report on Korea's first optically pumped primary frequency standard (KRISS-1)
developed at the Korea Research Institute of Standards and Science. Although a relatively …

In this paper we apply a modern signal processing approach for the determination of the
Rabi frequency value and some frequency shifts in a Cs beam standard. The Rabi frequency …

Analytic expressions have been derived of the alternating current (ac) Zeeman and ac Stark
effect in an atomic beam magnetic resonance method using Ramsey separated oscillating …

A new method is presented to directly determine the averaged phase difference/spl
phi/between the fields interacting with the atoms in the two regions of a Ramsey cavity. This …

The authors report on a method to determine the Rabi frequency and transit time distribution
of atoms that are essential for proper operation of atomic beam frequency standards. Their …

The present short term stability of our optically pumped frequency standard is/spl sigma//sub
y/(/spl tau/)= 3.8/spl middot/10/sup-13//spl tau//sup-1/2/. A great deal of work has been …

Systematic errors due to evanescent field inside an E-plane type Ramsey cavity are
corrected by introducing an extended square pulse profile in our Ramsey spectral analysis …

Comparing with the situation of Ramsey separated oscillating fields used in Cesium atomic
beam frequency standard, the transition probability spectrum of two-level atoms in the …