Title :
The optical system of the fountain clock
Author :
Xinliang Wang ; Jun Ruan ; Hui Zhang ; Rui Lin ; Dandan Liu ; Jiang Chen ; Yong Guan ; Fengxiang Yu ; Junru Shi ; Shougang Zhang
Author_Institution :
Nat. Time Service Center, Xi´an, China
Abstract :
This paper present an optical system for Cs atomic fountain clock that is located on a 1.2 m×1.2 m optical table. Taking advantage of this system, we trap about 108 cesium atoms in the magneto-optic trap (MOT) and get the Ramsey fringe of the fountain by scanning the microwave frequency of the interrogation cavity. The full-width at half-maximum of the central fringe (FWHM) is 1.4 Hz.
Keywords :
atomic clocks; magneto-optical effects; radiation pressure; Cs; Cs atomic fountain clock; Ramsey fringe; interrogation cavity; magneto-optic trap; microwave frequency; optical system; optical table; Acoustic beams; Atom optics; Atomic clocks; Laser beams; Laser stability; Optical polarization; Optical reflection; cold atom; fountain clock; optical clock;
Conference_Titel :
Frequency Control Symposium (FCS), 2014 IEEE International
Conference_Location :
Taipei
DOI :
10.1109/FCS.2014.6859885
