TY - JOUR
T1 - Field-free, Stark, and Zeeman spectroscopy of the à 2 Π1/2- X 2 ς+ transition of ytterbium monohydroxide
AU - Steimle, Timothy C.
AU - Linton, Colan
AU - Mengesha, Ephriem Tadesse
AU - Bai, Xilin
AU - Le, Anh T.
N1 - Funding Information:
The research at Arizona State University was supported by a grant from the Heising-Simons Foundation (Grant No. 2018-0681). The authors thank Professor Michael Morse (Chemistry Department, University of Utah) for the use of a cw-dye laser system. The author also than Professor John Doyle and Benjamin Augenbraun (Physics Department, Harvard University) and Professor Nicholas Hutzler (Division of Physics, Mathematics, and Astronomy, California Institute of Technology) for their insightful comments.
Publisher Copyright:
© 2019 American Physical Society.
PY - 2019/11/22
Y1 - 2019/11/22
N2 - The 000Ã2Π1/2-X2ς+, 110Ã2Π1/2-X2ς+, and 101Ã2Π1/2-X2ς+ bands of an internally cold molecular beam sample of ytterbium monohydroxide, YbOH, have been recorded at the near natural linewidth limit and analyzed to determine the fine structure parameters. Numerous lines in the 000Ã2Π1/2-X2ς+ band associated with the lowest rotational levels were recorded in the presence of a static electric field and analyzed to determine the magnitude of the molecular frame permanent electric dipole moment, |μ - el|, for the X2ς+(0,0,0) and Ã2Π1/2(0,0,0) states of 1.9(2) and 0.43(10) D, respectively. An electrostatic polarizability model is used to predict the μ - el for the X2ς+(0,0,0) state. The 000Ã2Π1/2-X2ς+ band is recorded in the presence of a weak static magnetic field to observe the electric dipole allowed transitions having ΔJ=-2, which are used to assist in the rotational quantum number assignment and confirm the identity of the excited state. An expression for the Ã2Π1/2(0,0,0) magnetic g factor is derived and shown to correctly model the observed magnetic tuning. A comparison with YbF is made and implications for the use of YbOH as a venue for symmetry violation measurements are discussed.
AB - The 000Ã2Π1/2-X2ς+, 110Ã2Π1/2-X2ς+, and 101Ã2Π1/2-X2ς+ bands of an internally cold molecular beam sample of ytterbium monohydroxide, YbOH, have been recorded at the near natural linewidth limit and analyzed to determine the fine structure parameters. Numerous lines in the 000Ã2Π1/2-X2ς+ band associated with the lowest rotational levels were recorded in the presence of a static electric field and analyzed to determine the magnitude of the molecular frame permanent electric dipole moment, |μ - el|, for the X2ς+(0,0,0) and Ã2Π1/2(0,0,0) states of 1.9(2) and 0.43(10) D, respectively. An electrostatic polarizability model is used to predict the μ - el for the X2ς+(0,0,0) state. The 000Ã2Π1/2-X2ς+ band is recorded in the presence of a weak static magnetic field to observe the electric dipole allowed transitions having ΔJ=-2, which are used to assist in the rotational quantum number assignment and confirm the identity of the excited state. An expression for the Ã2Π1/2(0,0,0) magnetic g factor is derived and shown to correctly model the observed magnetic tuning. A comparison with YbF is made and implications for the use of YbOH as a venue for symmetry violation measurements are discussed.
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U2 - 10.1103/PhysRevA.100.052509
DO - 10.1103/PhysRevA.100.052509
M3 - Article
AN - SCOPUS:85075595948
SN - 2469-9926
VL - 100
JO - Physical Review A
JF - Physical Review A
IS - 5
M1 - 052509
ER -