Laser-induced fluorescence studies of HfF+ produced by autoionization

作者：Loh Huanqian^*; Wang Jia; Grau Matt; Yahn Tyler S; Field Robert W; Greene Chris H; Cornell Eric A

来源：Journal of Chemical Physics, 2011, 135(15): 154308.

DOI：10.1063/1.3652333

• autoionisation
• electric moments
• fluorescence
• hafnium compounds
• molecular moments
• molecule-photon collisions
• optical double resonance
• photoionisation
• positive ions
• rotational states
• rotational-vibrational states
• Rydberg states
• Zeeman effect

Autoionization of Rydberg states of HfF, prepared using the optical-optical double resonance technique, holds promise to create HfF+ in a particular Zeeman level of a rovibronic state for an electron electric dipole moment search. We characterize a vibronic band of Rydberg HfF at 54 cm (1) above the lowest ionization threshold and directly probe the state of the ions formed from this vibronic band by performing laser-induced fluorescence on the ions. The Rydberg HfF molecules show a propensity to decay into only a few ion rotational states of a given parity and are found to preserve their orientation qualitatively upon autoionization. We show empirically that we can create 30% of the total ion yield in a particular vertical bar J(+), M+> state and present a simplified model describing autoionization from a given Rydberg state that assumes no angular dynamics.

• 出版日期2011-10-21
• 单位MIT