YbH+ formation in an ytterbium ion trap

Hoang, Thai M.; Jau, Yuan-Yu; Overstreet, Richard; Schwindt, Peter D.  D.

doi:10.1103/PhysRevA.101.022705

${YbH}^{+}$ formation in an ytterbium ion trap

Journal Article · Thu Feb 13 23:00:00 EST 2020 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.101.022705· OSTI ID:1619213

Hoang, Thai M. ^[1]; Jau, Yuan-Yu ^[1]; Overstreet, Richard ^[2]; ^[1]

Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Microchip, Inc., Beverly, MA (United States)

The trapped ¹⁷¹Yb⁺ ion is a promising candidate for portable atomic clock applications. However, with buffer-gas cooled ytterbium ions, the ions can be pumped into a low-lying ²F_{7 / 2} state or form YbH⁺ molecules. These dark states reduce the fluorescence signal from the ions and can degrade the clock stability. In this work, we study the dynamics of the populations of the ²F_{7 / 2} state and YbH⁺ molecules under different operating conditions of our 171 Yb⁺ ion system. Our study indicates that ²F_{7 / 2}-state ions can form YbH⁺ molecules through interactions with hydrogen gas. As observed previously, dissociation of YbH⁺ is observed at wavelengths around 369 nm. We also demonstrate YbH+ dissociation using 405 nm light. Moreover, we show that the population in the dark states can be limited by using a single repump laser at 935 nm. Our study provides insights into the molecular formation in a trapped ion system.

View Accepted Manuscript (DOE)

Research Organization:: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC04-94AL85000; NA0003525

OSTI ID:: 1619213

Alternate ID(s):: OSTI ID: 1599683

Report Number(s):: SAND--2019-8468J; 677707

Journal Information:: Physical Review A, Journal Name: Physical Review A Journal Issue: 2 Vol. 101; ISSN PLRAAN; ISSN 2469-9926

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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