Near-infrared2Δ-2Π nitric oxide laser with predissociated lower state

The spectrum of the light emitted at 10 200 Å by an NO laser is photographed with high resolution. The rotational analysis fully confirms the assignment made earlier to the transition
F^{2}\Delta-C^{2}\Pi
(1, 1) between two electronically excited levels of the NO molecule, both of which are configurationally mixed with valence levels.