# AUTOIONIZING STATES OF CALCIUM MONOFLUORIDE

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/20549

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 Title: AUTOIONIZING STATES OF CALCIUM MONOFLUORIDE Creators: Jiang, Xing; Clevenger, Jason O.; Panov, Sergey I.; Field, R. W. Issue Date: 2002 Abstract: We will report experimental results from the pulsed optical-optical double resonance study of Calcium Monofluoride(CaF). These spectra are recorded via $D{^{2}\Sigma^{+}}$ state of CaF in the autoionization region above $v^{+}=0$ ionization potential with $n^{\ast}=15 \sim 45$. Compared to the OODR spectra of CaCl obtained previously in the same region, more $^{2} \Sigma^{+} and ^{2}\Pi$ states are assigned for CaF. This can be explained by the predissociation of CaCl. In this autoionization region the disappearance or shift of some members of the predicted CaF core-penetrating series reveals the existence of perturbation between certain states, which is not the case for CaCl. The OODR spectra of CaF in the high-$n^{\ast}$ region indicate that the vibrationally autoionizing states of CaF converge to $v^{+} > 0$ vibrational levels of $CaF^{+}$ ion. This work completes previous studies of CaF by exploiting different intermediate states, e.g. the reverse-polarized $C{^{2}}\Pi$ state, to investigate the vibrational constant $\omega_{e}$ for each Rydberg series and the corresponding quantum defect derivative with respect to the internuclear distance $R^{+}$, which controls the autoionization process. URI: http://hdl.handle.net/1811/20549 Other Identifiers: 2002-TA-07