Trapping, retention and laser cooling of Th<sup>3+</sup> ions in a multisection linear quadrupole trap

Borisyuk, P. V.; Vasil’ev, O. S.; Derevyashkin, S. P.; Kolachevsky, N. N.; Lebedinskiǐ, Yu. Yu.; Poteshin, S. S.; Сысоев, А. А.; Tkalya, E. V.; Tregubov, D. O.; Troyan, V. I.; Khabarova, K. Yu.; Yudin, V. I.; Yakovlev, V. P.

doi:10.1070/qel16355

Cited by 17 publications

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“…In the main approach thorium ions are generated by laser ablation from a solid 229 Th target. The method was successfully applied for loading of thorium ( 229 Th or 232 Th) ions into Paul traps at the Georgia Institute of Technology [56][57][58]69,278,279,334], at PTB [132,221,344,422,423], at the Moscow Engineering Physics Institute (MePhI) [37,41,379] at a collaboration of different institutes in Mainz [109,341] and most recently at Griffith University in Brisbane [264].…”

Section: Generation Of 229 Th 3+ Ionsmentioning

confidence: 99%

“…Paul trapping of 229 Th ions has been achieved at PTB [132,221,344,422] at the Georgia Institute of Technology [57,58,278,279] and at LMU [321,398]. Several further experiments have reported preparatory trapping of 232 Th ions, which has the advantage of a lower radioactivity [37,38,41,109,264,341,380,382,383]. Importantly, thorium is a very reactive element.…”

Section: Paul Trapping Of 229 Th Ionsmentioning

confidence: 99%

“…Direct laser cooling of 229 Th 3+ is also in preparation at MEPhI to provide the basis for nuclear laser spectroscopy in a Paul trap and the development of a nuclear clock [37][38][39]41,380,382,383].…”

Section: Direct Laser Coolingmentioning

confidence: 99%

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The $$^{229}$$Th isomer: prospects for a nuclear optical clock

Wense

2020

Eur. Phys. J. A

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The proposal for the development of a nuclear optical clock has triggered a multitude of experimental and theoretical studies. In particular the prediction of an unprecedented systematic frequency uncertainty of about $$10^{-19}$$ 10 - 19 has rendered a nuclear clock an interesting tool for many applications, potentially even for a re-definition of the second. The focus of the corresponding research is a nuclear transition of the $$^{229}$$ 229 Th nucleus, which possesses a uniquely low nuclear excitation energy of only $$8.12\pm 0.11$$ 8.12 ± 0.11 eV ($$152.7\pm 2.1$$ 152.7 ± 2.1 nm). This energy is sufficiently low to allow for nuclear laser spectroscopy, an inherent requirement for a nuclear clock. Recently, some significant progress toward the development of a nuclear frequency standard has been made and by today there is no doubt that a nuclear clock will become reality, most likely not even in the too far future. Here we present a comprehensive review of the current status of nuclear clock development with the objective of providing a rather complete list of literature related to the topic, which could serve as a reference for future investigations.

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Section: Generation Of 229 Th 3+ Ionsmentioning

confidence: 99%

Section: Paul Trapping Of 229 Th Ionsmentioning

confidence: 99%

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The $$^{229}$$Th isomer: prospects for a nuclear optical clock

Wense

2020

Eur. Phys. J. A

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“…When combined, the results of these experiments will pave the way for the direct laser excitation of 229m Th ions in a Paul trap and in this way for the development of a single-ion nuclear clock. Preparations are currently ongoing in the US [36] in Russia [38] and in Germany [37].…”

Section: Steps Towards a Nuclear Clockmentioning

confidence: 99%

Towards a 229Th-Based Nuclear Clock

Wense

Thirolf

2018

Meas Tech

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An overview over the current status of the development of a nuclear clock based on the state of lowest known nuclear excitation energy in 229 Th is presented. The text is especially written for the interested reader without any particular knowledge in this field of research. It is thus ideal as an introductory reading to get a broad overview over the various different aspects of the field, in addition it can serve as a guideline for future research. An introductory part is provided, giving a historic context and explaining the fundamental concept of clocks. Finally, potential candidates for nuclear clocks other than 229 Th are discussed.Already in historic cultures the measurement of time L. von der Wense

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“…Fundamental interest to this problem is based on a number of unusual physical problems, such as electron bridges, isomeric state α decay, photon emission from the nucleus in a dielectric material with a wide band gap, enhancement of the relative effects of the variation of the fine structure constant and the strong interaction parameter m q /λ QCD , and others. With regard to feasible applications, the main focus is looking into the development of a nuclear transition‐based laser and highly accurate optical clocks . One of the approaches to nuclear transition‐based optical clocks is to laser cool a cloud of 229 Th ions loaded into a Paul trap .…”

Section: Introductionmentioning

confidence: 99%

A Unique System for Registering One‐Photon Signals in the Ultraviolet Range from An Isomeric ^229mTh Nucleus Implanted on Thin SiO₂/Si Films

Lebedinskiǐ

Borisyuk

Chubunova

et al. 2019

Physica Status Solidi (a)

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Currently, an urgent task related to creating a nuclear frequency standard is the identification of a low‐lying nuclear state in the thorium‐229 isotope. Herein, a method for measuring the single‐photon energy during the decay of an isomeric thorium‐229 nucleus implanted in a wide‐gap dielectric SiO2 (Eg = 9 eV) is developed. The proposed method utilizes thin silicon oxide layers obtained by thermal oxidization of the pure silica wafers, which allows measurement of the energy of photons in the ultraviolet (UV) range using an electronic spectrometer. The modeling study of electronic state excitation is provided via UV radiation from Kr, Xe, and D resonance discharging lamps. The obtained spectra are analyzed, and a method for determining the UV photon's energy is proposed.

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Trapping, retention and laser cooling of Th³⁺ ions in a multisection linear quadrupole trap

Cited by 17 publications

References 0 publications

The $$^{229}$$Th isomer: prospects for a nuclear optical clock

The $$^{229}$$Th isomer: prospects for a nuclear optical clock

Towards a 229Th-Based Nuclear Clock

A Unique System for Registering One‐Photon Signals in the Ultraviolet Range from An Isomeric ^229mTh Nucleus Implanted on Thin SiO₂/Si Films

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Trapping, retention and laser cooling of Th3+ ions in a multisection linear quadrupole trap

Cited by 17 publications

References 0 publications

The $$^{229}$$Th isomer: prospects for a nuclear optical clock

The $$^{229}$$Th isomer: prospects for a nuclear optical clock

Towards a 229Th-Based Nuclear Clock

A Unique System for Registering One‐Photon Signals in the Ultraviolet Range from An Isomeric 229mTh Nucleus Implanted on Thin SiO2/Si Films

Contact Info

Product

Resources

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Trapping, retention and laser cooling of Th³⁺ ions in a multisection linear quadrupole trap

A Unique System for Registering One‐Photon Signals in the Ultraviolet Range from An Isomeric ^229mTh Nucleus Implanted on Thin SiO₂/Si Films