We present a new technique for selectively populating excited states which are inaccessible by dipole excitation from the ground state. The method uses a static electric field to introduce a component of a dipole-allowed state into the state of interest. We have applied the method to cesium to measure lifetimes and a Stark mixing coefficient. The results are τ(62D 5 2)=64(2) ns, τ(72D 5 2)=92.5(15) ns, and <62D 5 2|;ez |72P 3 2>/(E7P-E6D)=0.7(3)×10-3 where is in kV/cm. 141.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Physical and Theoretical Chemistry
- Electrical and Electronic Engineering