We present a method to precisely determine the hyperfine structure constants of the rubidium 5D(5/2)and 7S(1/2)states in a cascade atomic system.The probe laser is coupled to the 5S_(1/2)→5P_(3/2)hyperfine transition...We present a method to precisely determine the hyperfine structure constants of the rubidium 5D(5/2)and 7S(1/2)states in a cascade atomic system.The probe laser is coupled to the 5S_(1/2)→5P_(3/2)hyperfine transition,while the coupling laser is scanned over the 5P_(3/2)→5D_(5/2)(7S_(1/2))transition.The high-resolution double-resonance optical pumping spectra are obtained with two counter-propagating laser beams acting on rubidium vapor.The hyperfine splitting structures are accurately measured by an optical frequency ruler based on the acousto-optic modulator,thus,the magnetic dipole hyperfine coupling constant A and quadrupole coupling constant B are determined.It is of great significance for the atomic hyperfine structure and fundamental physics research.展开更多
基金supported by the National Key R&D Program of China(No.2017YFA0304203)the National Natural Science Foundation of China(Nos.61575116,61705122,61728502,91736209,and 11434007)+3 种基金the Changjiang Scholars and Innovative Research Team in University of Ministry of Education of China(No.IRT13076)the Program for Sanjin Scholars of Shanxi Provincethe Applied Basic Research Project of Shanxi Province(No.201701D221004)the Fund for Shanxi‘1331 Project’Key Subjects Construction
文摘We present a method to precisely determine the hyperfine structure constants of the rubidium 5D(5/2)and 7S(1/2)states in a cascade atomic system.The probe laser is coupled to the 5S_(1/2)→5P_(3/2)hyperfine transition,while the coupling laser is scanned over the 5P_(3/2)→5D_(5/2)(7S_(1/2))transition.The high-resolution double-resonance optical pumping spectra are obtained with two counter-propagating laser beams acting on rubidium vapor.The hyperfine splitting structures are accurately measured by an optical frequency ruler based on the acousto-optic modulator,thus,the magnetic dipole hyperfine coupling constant A and quadrupole coupling constant B are determined.It is of great significance for the atomic hyperfine structure and fundamental physics research.
