https://doi.org/10.1351/goldbook.K03417
A CW or pulsed @L03459@ emitting lines from \(337\) to \(859\ \text{nm}\) from singly ionized krypton. Principal emissions are at \(530.9\), \(568.2\), \(647.1\) and \(752.5\ \text{nm}\).
See:
gas lasers