Temperature dependence of a Cs vapor cell clock: Pressure shift, signal amplitude, light shift

Abstract

We present the investigation on the temperature dependence of the pressure (collisional) shift of the Cs clock transition in presence of buffer gases (Ne, N 2 and Ar). The temperature dependence of the signal amplitude and light shift are also investigated. From the obtained coefficients of temperature dependence it is possible to foresee the buffer gas mixture which cancels the temperature sensitivity at a given temperature. These results as well as the results of the investigation on the signal amplitude and the light shift can be useful for improving the frequency stability of the Cs vapor-cell clocks.