Stark spectroscopy of a probe lithium beam excited with two dye lasers as a technique to study a high-power ion-beam diode
B. A. Knyazev, W. An, and H. Bluhm
A non-invasive diagnostic technique which measures of the electric field distribution in the KALIF ion diode by crossing lithium atom beam and two laser beams is described. The magnitude of the local electric field is determined using the Stark-shifted components of the lithium fluorescence spectrum.