Nuclear laser spectroscopy of the 3.5 eV transition in Th-229

@article{Peik2003NuclearLS,
  title={Nuclear laser spectroscopy of the 3.5 eV transition in Th-229},
  author={Ekkehard Peik and Chr. Tamm},
  journal={EPL},
  year={2003},
  volume={61},
  pages={181-186}
}
We propose high-resolution laser spectroscopy of the 3.5 eV nuclear transition in Th-229 in isolated atoms. Laser excitation of the nucleus can be detected efficiently in a double-resonance method by probing the hyperfine structure of a transition in the electron shell. It is shown that for a suitably chosen electronic level, the frequency of the nuclear transition is independent of external magnetic fields to first order and of electric fields to second order. This makes Th-229 a possible… Expand

Figures from this paper

Laser spectroscopy of Th+ above 7 eV excitation energy for electronic bridge excitation of the Th-229 nucleus
The possibility to realize a highly precise nuclear clock based on laser excitation of the isomeric state in Th-229 has motivated experiments with thorium ions in traps. The application of highlyExpand
Towards an optical nuclear clock with thorium-229
We report experimental results towards optical excitation of the low-lying isomer level in the 229 Th nucleus, a promising system for use in precise optical clocks and tests of fundamental physics.Expand
The concept of laser-based conversion electron Mössbauer spectroscopy for a precise energy determination of 229mTh
Abstract229Th is the only nucleus currently under investigation for the development of a nuclear optical clock (NOC) of ultra-high accuracy. The insufficient knowledge of the first nuclear excitationExpand
Laser-induced electronic bridge for characterization of the 229mTh → 229gTh nuclear transition with a tunable optical laser with a tunable optical laser
An alternative method to determine the excitation energy of the $~^{229\rm{m}}\rm{Th}$ isomer via the laser-induced electronic bridge is investigated theoretically. In the presence of an optical orExpand
X-ray pumping of the 229Th nuclear clock isomer
TLDR
Active optical pumping is presented using narrow-band 29-kiloelectronvolt synchrotron radiation to resonantly excite the second excited state of 229Th, which then decays predominantly into the isomer, enabling accurate determination of the 229mTh isomer’s energy, half-life and excitation linewidth. Expand
Experiments Towards Optical Nuclear Spectroscopy With Thorium-229
  • 2010
The discovery of the low-lying isomeric nuclear state of Th at 7.6 ± 0.5 eV above the ground state opened a new field of research as a bridge between nuclear and atomic physics. Since indirectExpand
The thorium-229 low-energy isomer and the nuclear clock
The 229Th nucleus has an isomeric state at an energy of about 8 eV above the ground state, several orders of magnitude lower than typical nuclear excitation energies. This has inspired theExpand
Toward an energy measurement of the internal conversion electron in the deexcitation of the 229 Th isomer
The first excited isomeric state of Th-229 has an exceptionally low energy of only a few eV and could form the gateway to high-precision laser spectroscopy of nuclei. The excitation energy of theExpand
Laser spectroscopic characterization of the nuclear-clock isomer 229mTh
TLDR
The laser spectroscopic investigation of the hyperfine structure of the doubly charged 229mTh ion and the determination of the fundamental nuclear properties of the isomer, namely, its magnetic dipole and electric quadrupole moments, as well as its nuclear charge radius are presented. Expand
Optical spectroscopy of an atomic nucleus: Progress toward direct observation of the 229Th isomer transition
Abstract The nucleus of the thorium-229 isotope possesses a first excited nuclear state ( 229m Th) at an exceptionally low energy of 7.8±0.5 eV above the nuclear ground state ( 229g Th), asExpand
...
1
2
3
4
5
...

References

SHOWING 1-3 OF 3 REFERENCES
Frequency Measurement and Control
Frequency Measurement and Control, Topics in Applied Physics, edited by Luiten A., Vol. 79 (Springer, Berlin
  • Phys. Rev. C,
  • 2000
Frequency Measurement and Control, Topics in Applied Physics, edited by Luiten A., Vol. 79 (Springer, Berlin
  • Phys. Rev. C,
  • 2000