Measurement of the hydrogen 1S- 2S transition frequency by phase coherent comparison with a microwave cesium fountain clock |
| |
| Authors: | Niering Holzwarth Reichert Pokasov Udem Weitz Hansch Lemonde Santarelli Abgrall Laurent Salomon Clairon |
| |
| Institution: | Max-Planck-Institut fur Quantenoptik, Hans-Kopfermann-Strasse 1, 85748 Garching, Germany. |
| |
| Abstract: | We report on an absolute frequency measurement of the hydrogen 1S-2S two-photon transition in a cold atomic beam with an accuracy of 1.8 parts in 10(14). Our experimental result of 2 466 061 413 187 103(46) Hz has been obtained by phase coherent comparison of the hydrogen transition frequency with an atomic cesium fountain clock. Both frequencies are linked with a comb of laser frequencies emitted by a mode locked laser. |
| |
| Keywords: | |
| 本文献已被 PubMed 等数据库收录！ |
