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Inhomogeneous light shifts of coherent population trapping resonances. / Pollock, J. W.; Yudin, V. I.; Taichenachev, A. V. et al.

In: Applied Physics Letters, Vol. 120, No. 15, 154001, 11.04.2022.

Research output: Contribution to journal › Article › peer-review

Harvard

Pollock, JW, Yudin, VI, Taichenachev, AV, Basalaev, MY, Kovalenko, DV, Hansen, A, Kitching, J & McGehee, WR 2022, 'Inhomogeneous light shifts of coherent population trapping resonances', Applied Physics Letters, vol. 120, no. 15, 154001. https://doi.org/10.1063/5.0087391

APA

Pollock, J. W., Yudin, V. I., Taichenachev, A. V., Basalaev, M. Y., Kovalenko, D. V., Hansen, A., Kitching, J., & McGehee, W. R. (2022). Inhomogeneous light shifts of coherent population trapping resonances. Applied Physics Letters, 120(15), [154001]. https://doi.org/10.1063/5.0087391

Vancouver

Pollock JW, Yudin VI, Taichenachev AV, Basalaev MY, Kovalenko DV, Hansen A et al. Inhomogeneous light shifts of coherent population trapping resonances. Applied Physics Letters. 2022 Apr 11;120(15):154001. doi: 10.1063/5.0087391

Author

Pollock, J. W. ; Yudin, V. I. ; Taichenachev, A. V. et al. / Inhomogeneous light shifts of coherent population trapping resonances. In: Applied Physics Letters. 2022 ; Vol. 120, No. 15.

BibTeX

@article{90b97cf4712041a5a4277066870bffba,
title = "Inhomogeneous light shifts of coherent population trapping resonances",
abstract = "Coherent population trapping (CPT) in atomic vapors using all-optical interrogation has enabled the miniaturization of microwave atomic clocks. Light shifts induced by the CPT driving fields can impact the spectral profile of CPT resonances and are a common limit to the long-term stability of CPT clocks. Nonlinear light shifts have been observed in several CPT systems and have not been explored in detail. In this Letter, we demonstrate that nonlinear light shifts in CPT clocks can arise from spatially inhomogeneous CPT driving fields. We measure this effect using Gaussian laser beams in a buffer gas cell and show strong agreement with a four-level model describing the CPT Λ-system with a noninteracting {"}trap{"}state. We estimate the effect of this nonlinearity on recently developed light shift mitigation techniques and suggest improvements to existing techniques. ",
author = "Pollock, {J. W.} and Yudin, {V. I.} and Taichenachev, {A. V.} and Basalaev, {M. Yu} and Kovalenko, {D. V.} and A. Hansen and J. Kitching and McGehee, {W. R.}",
note = "Funding Information: We thank Aly Artusio-Glimpse and Isaac Fan for thoughtful comments on this work. This work was performed under the following financial assistance Award No. 70NANB18H006 from U.S. Department of Commerce, National Institute of Standards and Technology. V.I.Y., M.Y.B., and D.V.K. were supported by the Russian Science Foundation (No. 21-12-00057). V.I.Y. was also supported by the Russian Foundation for Basic Research (No. 20-02-00505), Ministry of Education and Science of the Russian Federation (No. FSUS-2020-0036), and Foundation for the Advancement of Theoretical Physics and Mathematics “BASIS.” Publisher Copyright: {\textcopyright} 2022 Public Domain.",
year = "2022",
month = apr,
day = "11",
doi = "10.1063/5.0087391",
language = "English",
volume = "120",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics",
number = "15",

}

RIS

TY - JOUR

T1 - Inhomogeneous light shifts of coherent population trapping resonances

AU - Pollock, J. W.

AU - Yudin, V. I.

AU - Taichenachev, A. V.

AU - Basalaev, M. Yu

AU - Kovalenko, D. V.

AU - Hansen, A.

AU - Kitching, J.

AU - McGehee, W. R.

N1 - Funding Information: We thank Aly Artusio-Glimpse and Isaac Fan for thoughtful comments on this work. This work was performed under the following financial assistance Award No. 70NANB18H006 from U.S. Department of Commerce, National Institute of Standards and Technology. V.I.Y., M.Y.B., and D.V.K. were supported by the Russian Science Foundation (No. 21-12-00057). V.I.Y. was also supported by the Russian Foundation for Basic Research (No. 20-02-00505), Ministry of Education and Science of the Russian Federation (No. FSUS-2020-0036), and Foundation for the Advancement of Theoretical Physics and Mathematics “BASIS.” Publisher Copyright: © 2022 Public Domain.

PY - 2022/4/11

Y1 - 2022/4/11

N2 - Coherent population trapping (CPT) in atomic vapors using all-optical interrogation has enabled the miniaturization of microwave atomic clocks. Light shifts induced by the CPT driving fields can impact the spectral profile of CPT resonances and are a common limit to the long-term stability of CPT clocks. Nonlinear light shifts have been observed in several CPT systems and have not been explored in detail. In this Letter, we demonstrate that nonlinear light shifts in CPT clocks can arise from spatially inhomogeneous CPT driving fields. We measure this effect using Gaussian laser beams in a buffer gas cell and show strong agreement with a four-level model describing the CPT Λ-system with a noninteracting "trap"state. We estimate the effect of this nonlinearity on recently developed light shift mitigation techniques and suggest improvements to existing techniques.

AB - Coherent population trapping (CPT) in atomic vapors using all-optical interrogation has enabled the miniaturization of microwave atomic clocks. Light shifts induced by the CPT driving fields can impact the spectral profile of CPT resonances and are a common limit to the long-term stability of CPT clocks. Nonlinear light shifts have been observed in several CPT systems and have not been explored in detail. In this Letter, we demonstrate that nonlinear light shifts in CPT clocks can arise from spatially inhomogeneous CPT driving fields. We measure this effect using Gaussian laser beams in a buffer gas cell and show strong agreement with a four-level model describing the CPT Λ-system with a noninteracting "trap"state. We estimate the effect of this nonlinearity on recently developed light shift mitigation techniques and suggest improvements to existing techniques.

UR - http://www.scopus.com/inward/record.url?scp=85128972373&partnerID=8YFLogxK

U2 - 10.1063/5.0087391

DO - 10.1063/5.0087391

M3 - Article

AN - SCOPUS:85128972373

VL - 120

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 15

M1 - 154001

ER -

ID: 36030242