Abstract

There have been many studies of alkali dimer diffuse bands because of their excimer-type nature.¹ As fundamental studies toward new tunable and high-power excimer lasers, we extend the work on the Na₂ violet-band² to the K₂ yellow-band and the Rb₂ orange-band emissions using e-beam pumping. The e- beam output of a Febetron 706 with a velvet cathode is injected into an oven cell containing dense Rb or K vapor. The emission from the cell is introduced to a spectrum multichannel analyzer (SMA) through an MgF₂ window at the end of the cell. The resolution of SMA system is 0.12 nm/channel.

© 1992 Optical Society of America