Photo-induced Quenching of the 229Th Isomer in a Solid-State Host

作     者：Terhune, J.E.S. Elwell, R. Tan, H.B. Tran Perera, U.C. Morgan, H.W.T. Alexandrova, A.N. Derevianko, Andrei Hudson, Eric R. 

作者机构：Department of Physics and Astronomy University of California Los AngelesCA90095 United States Department of Physics University of Nevada RenoNV89557 United States Los Alamos National Laboratory P.O. Box 1663 Los AlamosNM87545 United States Department of Chemistry and Biochemistry University of California Los Angeles Los AngelesCA90095 United States Challenge Institute for Quantum Computation University of California Los Angeles Los AngelesCA United States Center for Quantum Science and Engineering University of California Los Angeles Los AngelesCA United States 

出 版 物：《arXiv》 (arXiv)

年 卷 期：2024年

核心收录：

主　　题：Electronic states 

摘      要：The population dynamics of the 229Th isomeric state is studied in a solid-state host under laser illumination. A photoquenching process is observed, where off-resonant vacuum-ultraviolet (VUV) radiation leads to relaxation of the isomeric state. The cross-section for this photoquenching process is measured and a model for the decay process, where photoexcitation of electronic states within the material bandgap opens an internal conversion decay channel, is presented and appears to reproduce the measured cross-section. © 2024, CC0.