Integrated physics package of micromercury trapped ion clock with 1-14-level frequency stability

Thai M. Hoang, Sang K. Chung, Thanh Le, John D. Prestage, Lin Yi, Robert L. Tjoelker, Sehyun Park, Sung Jin Park, J. Gary Eden, Christopher Holland, Nan Yu

Research output: Contribution to journalArticlepeer-review

Abstract

Mercury trapped ion clocks have demonstrated great long-term frequency stability and robustness. In this paper, we report a demonstration of an integrated 100-cc physics package in an effort to develop a micromercury trapped ion clock with high frequency stability. The physics package consists of a sealed 30-cc vacuum tube with one layer of magnetic shielding, light source, and detector assembly. A field emitter array and a 194-nm microplasma lamp were employed together with a microtrap tube to reduce the size and power consumption for a mercury trapped ion clock. We show that the 100-cc physics package is capable of providing a fractional frequency stability of after a few hours of integration. We also show a set of environmental sensitivity evaluations as well as the clock frequency retrace.

Original languageEnglish (US)
Article number044001
JournalApplied Physics Letters
Volume119
Issue number4
DOIs
StatePublished - Jul 26 2021
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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