Laser-induced fluorescence of CaF: the B'2Delta state

Abstract
The 3375 AA line of a krypton ion laser has been used to excite red and near infrared fluorescence, recorded by Fourier-transform spectrometry, in CaF. The main transition pumped is R1(2.5 e) in the 0-1 band of C 2 Pi -X 2 Sigma +. Lines of three systems have been measured: C 2 Pi 12/-A 2 Pi 12/, C 2 Pi 12/-B 2 Sigma + and C 2 Pi 12/-B' 2 Delta 32/. T00(2 Delta 32/) is about 21530.8 cm-1, and the effective value of B0 for the same level is 0.32357 (13) cm-1.