Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Quantum Electronics

Trapping of thulium atoms in a cavity-enhanced optical lattice near a magic wavelength of 814.5 nm

Елена Сергеевна Калганова, Artem A. Golovizin, D O Shevnin, Dmitry O. Tregubov, Ksenia Yu. Khabarova, В. Н. Сорокин, N. Kolachevsky

Published May 7, 2018• 10 citations
Publisher

Abstract

A cavity-enhanced optical lattice at a wavelength of 814.5 nm for thulium atoms is designed and its characteristics are investigated. The parametric resonances at the vibrational frequencies of the trap are measured. The enhancement cavity will be applied to search for the magic wavelength of the clock transition at 1.14 μm in thulium atoms.

DOI
10.1070/qel16656

Related papers

Magic Wavelength Measurement of the 87 Sr Optical Lattice Clock at NIM

Qiang Wang, Yige Lin, Fei Meng +5 more

We report on the magic wavelength measurement of our optical lattice clock based on fermion strontium atoms at the National Institute of Metrology (NIM). A Ti:sapphire solid state laser locked to a reference cavity inside a temperature-stabilized vacuum chamber is employed to generate the optical lattice. The laser frequency is measured by an erbium fiber frequency comb. The trap depth is modulated by varying the lattice laser power via an acousto-optic modulator. We obtain the frequency shift coefficient at this lattice wavelength by measuring the differential frequency shift of the clock transition of the strontium atoms at different trap depths, and the frequency shift coefficient at this lattice wavelength is obtained. We measure the frequency shift coefficients at different lattice frequencies around the magic wavelength and linearly fit the measurement data, and the magic wavelength is calculated to be 368554672(44) MHz.

Chinese Physics Letters•Oct 1, 2016•9 citations

Rabi spectroscopy of the clock transition in thulium atoms in a one-dimensional optical lattice

E.S. Fedorova, Dmitry O. Tregubov, Artem A. Golovizin +5 more

Abstract The clock transition at a wavelength of 1.14 μm in thulium atoms in an optical lattice in the Lamb – Dick regime is studied. The capture of thulium atoms makes it possible to suppress completely both the transition broadening due to the first-order Doppler effect and the shift of the transition frequency caused by the recoil effect. The excitation spectra of sideband oscillation frequencies and Rabi oscillations of population between the clock transition levels upon resonance excitation are investigated.

Quantum Electronics•Mar 1, 2020•6 citations

Investigation of the 4f146s2 1S0−4f135d6s2 (J = 2) clock transition at 431 nm of 171Yb atoms trapped in an optical lattice

Congyu Wang, Yuan Yao, Haosen Shi +3 more

With the aid of an optical frequency divider based on an optical frequency comb, the frequency of a laser at 431 nm is divided from a cavity-stabilized laser at 578 nm. Using the frequency-stabilized 431 nm laser, we observe a 2.5 kHz linewidth 4f146s2 1S0−4f135d6s2 (J = 2) transition of 171Yb atoms trapped in an optical lattice. By measuring the lattice-induced frequency shift, we determine the magic wavelength of the optical lattice for the 431 nm transition to be 797.97(20) nm. The frequency of the 431 nm transition is measured to be 695 171 054 856.9(1.1) kHz by referencing to the 1S0−3P0 transition at 578 nm of Yb atoms.

Applied Physics Letters•Jan 20, 2025•3 citations

Preparation of an Ensemble of Thulium Atoms in Different Vibrational Levels in an Optical Lattice

K. O. Babichev, Daniil I. Provorchenko, D. Mishin +3 more

The deterministic excitation of thulium atoms from the ground vibrational state of the optical lattice potential to the first and second vibrational levels with efficiencies of 40 and 24%, respectively, has been demonstrated. The purity of the prepared vibrational states is at least 93 and 95% in the former and latter cases, respectively, and is limited by both the purity of the initial state and the non-resonant excitation of the clock transition carrier frequency. The obtained high efficiency and quality of the preparation of atoms in a given vibrational level make it possible to characterize and control the frequency shift of the clock transition due to the interaction of thulium atoms with the field of the optical lattice, which is necessary to achieve an uncertainty of 10–17 for the thulium optical clock.

Journal of Experimental and Theoretical Physics Letters•May 1, 2025•1 citation

Magic Wavelengths of the Optical Clock Transition at 1107 nm of Barium

Geng-Hua Yu, Qi‐Ming Xu, Chao Zhou +3 more

Magic wavelengths for laser trapping of barium atoms in the optical lattices are calculated with considering the optical clock transition at 1107 nm between the 6s 2 1 S 0 state and 6s5d 3 D 1 state. Theoretical calculation shows that there are several magic wavelengths with the linearly polarized trapping laser. The trap depths of the optical lattice and the slope of light shift difference with different magic wavelengths are also calculated. Some of these magic wavelengths are selected and recommended as potentially suitable magic wavelengths for the optical lattice trapping laser.

Chinese Physics Letters•Mar 1, 2015•2 citations

Magic wavelengths of the optical clock transition at 877 nm of barium

Geng-Hua Yu, Qi‐Ming Xu, Chao Zhou +3 more

Magic wavelengths for laser trapping of barium atoms in the optical lattices are investigated while considering the optical clock transition at 877 nm between the 6s21S0 state and 6s5d 1D2 state. Theoretical calculation shows that there are several magic wavelengths with the linearly polarized trapping laser. The trap depths of the optical lattice and the slope of light shift difference with different magic wavelengths are also discussed and analyzed. Some of these magic wavelengths are selected and recommended for the optical lattice trapping laser.

Modern Physics Letters B•Sep 10, 2014•5 citations
A cavity-enhanced optical lattice at a wavelength of 814.5 nm for thulium atoms is designed and its characteristics are investigated. The parametric resonances at the vibrational frequencies of the trap are measured. The enhancement cavity will be applied to search for the magic wavelength of the clock transition at 1.14 μm in thulium atoms.
We report on the magic wavelength measurement of our optical lattice clock based on fermion strontium atoms at the National Institute of Metrology (NIM). A Ti:sapphire solid state laser locked to a reference cavity inside a temperature-stabilized vacuum chamber is employed to generate the optical lattice. The laser frequency is measured by an erbium fiber frequency comb. The trap depth is modulated by varying the lattice laser power via an acousto-optic modulator. We obtain the frequency shift coefficient at this lattice wavelength by measuring the differential frequency shift of the clock transition of the strontium atoms at different trap depths, and the frequency shift coefficient at this lattice wavelength is obtained. We measure the frequency shift coefficients at different lattice frequencies around the magic wavelength and linearly fit the measurement data, and the magic wavelength is calculated to be 368554672(44) MHz.
Abstract The clock transition at a wavelength of 1.14 μm in thulium atoms in an optical lattice in the Lamb – Dick regime is studied. The capture of thulium atoms makes it possible to suppress completely both the transition broadening due to the first-order Doppler effect and the shift of the transition frequency caused by the recoil effect. The excitation spectra of sideband oscillation frequencies and Rabi oscillations of population between the clock transition levels upon resonance excitation are investigated.
With the aid of an optical frequency divider based on an optical frequency comb, the frequency of a laser at 431 nm is divided from a cavity-stabilized laser at 578 nm. Using the frequency-stabilized 431 nm laser, we observe a 2.5 kHz linewidth 4f146s2 1S0−4f135d6s2 (J = 2) transition of 171Yb atoms trapped in an optical lattice. By measuring the lattice-induced frequency shift, we determine the magic wavelength of the optical lattice for the 431 nm transition to be 797.97(20) nm. The frequency of the 431 nm transition is measured to be 695 171 054 856.9(1.1) kHz by referencing to the 1S0−3P0 transition at 578 nm of Yb atoms.
The deterministic excitation of thulium atoms from the ground vibrational state of the optical lattice potential to the first and second vibrational levels with efficiencies of 40 and 24%, respectively, has been demonstrated. The purity of the prepared vibrational states is at least 93 and 95% in the former and latter cases, respectively, and is limited by both the purity of the initial state and the non-resonant excitation of the clock transition carrier frequency. The obtained high efficiency and quality of the preparation of atoms in a given vibrational level make it possible to characterize and control the frequency shift of the clock transition due to the interaction of thulium atoms with the field of the optical lattice, which is necessary to achieve an uncertainty of 10–17 for the thulium optical clock.
Magic wavelengths for laser trapping of barium atoms in the optical lattices are calculated with considering the optical clock transition at 1107 nm between the 6s 2 1 S 0 state and 6s5d 3 D 1 state. Theoretical calculation shows that there are several magic wavelengths with the linearly polarized trapping laser. The trap depths of the optical lattice and the slope of light shift difference with different magic wavelengths are also calculated. Some of these magic wavelengths are selected and recommended as potentially suitable magic wavelengths for the optical lattice trapping laser.
Magic wavelengths for laser trapping of barium atoms in the optical lattices are investigated while considering the optical clock transition at 877 nm between the 6s21S0 state and 6s5d 1D2 state. Theoretical calculation shows that there are several magic wavelengths with the linearly polarized trapping laser. The trap depths of the optical lattice and the slope of light shift difference with different magic wavelengths are also discussed and analyzed. Some of these magic wavelengths are selected and recommended for the optical lattice trapping laser.