Affiliation:
1. Research Center of Laser Crystal Key Laboratory of High‐Power Laser Materials Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences Shanghai 201800 China
2. Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing 100049 China
3. National Laboratory of Solid‐State Microstructures School of Physics Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing Jiangsu 210093 China
4. State Key Laboratory of Precision Spectroscopy East China Normal University Shanghai 200062 China
Abstract
AbstractThe solid‐state nuclear optical clock based on 229Th‐doped crystal has great advantages in frequency stability, excitation and detection of nuclear transition, miniaturization, commercialization, and spaceborne ability of nuclear optical clock. Here, the potential of LiF crystal as a host for Th ions is predicted by theoretical calculation, and on this basis, the Th:LiF crystal is successfully grown experimentally for the first time. The theoretical results demonstrate that although the challenges of charge nonconservation and ion radius mismatch between Li+ and Th4+ ions exist, effective doping of thorium can still be achieved via energetically favorable charge compensation mechanisms in an F‐rich environment, and the transmittance of Th:LiF crystal in nuclear transition band will only have a slight decrease, smaller than that of pure LiF crystal. The experimental results prove that the doping concentration of Th:LiF crystal can reach about 8.3 × 1018 cm−3 and the transmittances of 1 mm thick Th:LiF and pure LiF crystal samples grown in similar conditions are ≈68% and 72% at 152.7 nm, respectively. The Th:LiF crystal with high doping concentration, high transmittance, and low background luminescence is expected to be a promising candidate for solid‐state nuclear optical clock materials.
Subject
Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials
Reference54 articles.
1. Nuclear laser spectroscopy of the 3.5 eV transition in Th-229
2. Simulation of a recoil mass spectrometer for measurement of differential quasi-elastic scattering cross sections
3. Exciting the Isomeric
Th229
Nuclear State via Laser-Driven Electron Recollision
4. Driven electronic bridge processes via defect states in
Th229
-doped crystals
5. S.Kraemer J.Moens M. A.Kaklamanakis S.Bara K.Beeks P.Chhetri K.Chrysalidis A.Claessens T. E.Cocolios J. M.Correia H. D.Witte R.Ferrer S.Geldhof R.Heinke N.Hosseini M.Huyse U.Köster Y.Kudryavtsev M.Laatiaoui R.Lica G.Magchiels V.Manea C.Merckling L. M. C.Pereira S.Raeder T.Schumm S.Sels P. G.Thirolf S. M.Tunhuma P. V. D.Bergh et al.(preprint)arXiv:2209.10276.v1 submitted: September2022 https://arxiv.org/abs/2209.10276.
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