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Laser Excitation of the Th-229 Nucleus.
Tiedau, J; Okhapkin, M V; Zhang, K; Thielking, J; Zitzer, G; Peik, E; Schaden, F; Pronebner, T; Morawetz, I; De Col, L Toscani; Schneider, F; Leitner, A; Pressler, M; Kazakov, G A; Beeks, K; Sikorsky, T; Schumm, T.
Afiliación
  • Tiedau J; Physikalisch-Technische Bundesanstalt, 38116 Braunschweig, Germany.
  • Okhapkin MV; Physikalisch-Technische Bundesanstalt, 38116 Braunschweig, Germany.
  • Zhang K; Physikalisch-Technische Bundesanstalt, 38116 Braunschweig, Germany.
  • Thielking J; Physikalisch-Technische Bundesanstalt, 38116 Braunschweig, Germany.
  • Zitzer G; Physikalisch-Technische Bundesanstalt, 38116 Braunschweig, Germany.
  • Peik E; Physikalisch-Technische Bundesanstalt, 38116 Braunschweig, Germany.
  • Schaden F; Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien, 1020 Vienna, Austria.
  • Pronebner T; Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien, 1020 Vienna, Austria.
  • Morawetz I; Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien, 1020 Vienna, Austria.
  • De Col LT; Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien, 1020 Vienna, Austria.
  • Schneider F; Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien, 1020 Vienna, Austria.
  • Leitner A; Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien, 1020 Vienna, Austria.
  • Pressler M; Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien, 1020 Vienna, Austria.
  • Kazakov GA; Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien, 1020 Vienna, Austria.
  • Beeks K; Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien, 1020 Vienna, Austria.
  • Sikorsky T; Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien, 1020 Vienna, Austria.
  • Schumm T; Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien, 1020 Vienna, Austria.
Phys Rev Lett ; 132(18): 182501, 2024 May 03.
Article en En | MEDLINE | ID: mdl-38759160
ABSTRACT
The 8.4 eV nuclear isomer state in Th-229 is resonantly excited in Th-doped CaF_{2} crystals using a tabletop tunable laser system. A resonance fluorescence signal is observed in two crystals with different Th-229 dopant concentrations, while it is absent in a control experiment using Th-232. The nuclear resonance for the Th^{4+} ions in ThCaF_{2} is measured at the wavelength 148.3821(5) nm, frequency 2020.409(7) THz, and the fluorescence lifetime in the crystal is 630(15) s, corresponding to an isomer half-life of 1740(50) s for a nucleus isolated in vacuum. These results pave the way toward Th-229 nuclear laser spectroscopy and realizing optical nuclear clocks.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2024 Tipo del documento: Article País de afiliación: Alemania Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2024 Tipo del documento: Article País de afiliación: Alemania Pais de publicación: Estados Unidos