@article{551,
  author = {F.-L. Hong and Jun Ye and L.-S. Ma and S. Picard and Christian Bordé and John Hall},
  title = {Rotation dependence of electric quadrupole hyperfine interaction in the ground state of molecular iodine by high-resolution laser spectroscopy},
  abstract = {Doppler-free high-resolution spectroscopy is applied to molecular iodine at 532 nm by Nd:YAG lasers. The main hyperfine components as well as the crossover lines are measured for R(56)32–0 and P(54)32–0 transitions by heterodyne beating of two I2-stabilized lasers. The measured hyperfine splittings including both main and crossover lines are fitted to a four-term Hamiltonian, which includes the electric quadrupole, spin–rotation, tensor spin–spin, and scalar spin–spin interactions, with an average deviation of ∼1 kHz. Absolute values of the electric quadrupole hyperfine constants for both the upper and the lower states are obtained. The rotation dependence of the ground-state (v″=0) electric quadrupole constant eQq″ is found to be eQq″(J)=−2452.556(2)−0.000164(5)J(J+1)−0.000000005(2)J2(J+1)2 MHz.},
  year = {2001},
  journal = {Journal of the Optical Society of America B},
  volume = {18},
  pages = {379},
  month = {2001-03},
  issn = {0740-3224},
  doi = {10.1364/JOSAB.18.000379},
}