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

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

Abstract

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.

Authors:

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)

Publication Date:: Fri Feb 14 00:00:00 EST 2020

Research Org.:: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA)

OSTI Identifier:: 1619213

Alternate Identifier(s):: OSTI ID: 1599683

Report Number(s):: SAND-2019-8468J
Journal ID: ISSN 2469-9926; PLRAAN; 677707; TRN: US2106849

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

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review A

Additional Journal Information:: Journal Volume: 101; Journal Issue: 2; Journal ID: ISSN 2469-9926

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 74 ATOMIC AND MOLECULAR PHYSICS; Trapped ions

Citation Formats


                    Hoang, Thai M., Jau, Yuan-Yu, Overstreet, Richard, and Schwindt, Peter D.  D. YbH+ formation in an ytterbium ion trap.  United States: N. p., 2020. 
Web.  doi:10.1103/PhysRevA.101.022705.

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                    Hoang, Thai M., Jau, Yuan-Yu, Overstreet, Richard, & Schwindt, Peter D.  D. YbH+ formation in an ytterbium ion trap.  United States.  https://doi.org/10.1103/PhysRevA.101.022705

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                    Hoang, Thai M., Jau, Yuan-Yu, Overstreet, Richard, and Schwindt, Peter D.  D. Fri .  
"YbH+ formation in an ytterbium ion trap".  United States.  https://doi.org/10.1103/PhysRevA.101.022705.  https://www.osti.gov/servlets/purl/1619213.

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@article{osti_1619213,

  title        = {YbH+ formation in an ytterbium ion trap},

  author       = {Hoang, Thai M. and Jau, Yuan-Yu and Overstreet, Richard and Schwindt, Peter D.  D.},

  abstractNote = {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 2F7 / 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 2F7 / 2 state and YbH+ molecules under different operating conditions of our 171 Yb+ ion system. Our study indicates that 2F7 / 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.},

  doi          = {10.1103/PhysRevA.101.022705},

  journal      = {Physical Review A},

  number       = 2,

  volume       = 101,

  place        = {United States},

  year         = {Fri Feb 14 00:00:00 EST 2020},

  month        = {Fri Feb 14 00:00:00 EST 2020}

}

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Works referenced in this record:

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Title: YbH + formation in an ytterbium ion trap

Abstract

Citation Formats

A tunable light source in the 370 nm range based on an optically stabilized, frequency-doubled semiconductor laser journal, May 1993

Compact Optical Clock with 5×10 −13 Instability at 1 s: Compact Optical Clock journal, March 2018

Lifetime measurements of the 4 f 14 5 d metastable states in single ytterbium ions journal, January 2000

F -state quenching with CH 4 for buffer-gas cooled 171 Y b + frequency standard journal, November 2015

Collisional population transfer in trapped Yb + ions journal, June 2009

Collisional Population Trapping and Optical Deexcitation of Ytterbium Ions in a Radiofrequency Trap journal, February 1992

Low-power, miniature 171 Yb ion clock using an ultra-small vacuum package journal, December 2012

Disappearance of $\bf Yb^{+}$ in Excited States from rf Trap by Background Gases journal, May 1995

Precision Measurement of the 2 journal, February 1992

Laser cooling of trapped Yb+ journal, January 1990

Production of YbH + by chemical reaction of Yb + in excited states with H 2 gas journal, January 1997

A highly miniaturized vacuum package for a trapped ion atomic clock journal, May 2016

Efficient quenching of population trapping in excited Yb + journal, April 1995

Low-Drift Coherent Population Trapping Clock Based on Laser-Cooled Atoms and High-Coherence Excitation Fields journal, November 2017

Population trapping in excited Yb ions journal, May 1989

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

A tunable light source in the 370 nm range based on an optically stabilized, frequency-doubled semiconductor laser
journal, May 1993

Compact Optical Clock with 5×10 ⁻¹³ Instability at 1 s: Compact Optical Clock
journal, March 2018

Lifetime measurements of the ${4 f}^{14} 5 d$ metastable states in single ytterbium ions
journal, January 2000

F -state quenching with CH ₄ for buffer-gas cooled ¹⁷¹ Y b ⁺ frequency standard
journal, November 2015

Collisional population transfer in trapped ${Yb}^{+}$ ions
journal, June 2009

Collisional Population Trapping and Optical Deexcitation of Ytterbium Ions in a Radiofrequency Trap
journal, February 1992

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