Date of Award

Spring 1991

Document Type


Degree Name

Doctor of Philosophy (PhD)




Applied Physics

Committee Director

Mark D. Havey

Committee Member

G. Copeland

Committee Member

G. Hoy

Committee Member

A. Klein

Committee Member

Linda Vahala


The rotationally resolved absorption spectrum of the 6Li20Ne and 7Li20Ne 3s2Σ+ ← 2p2 II transition has been observed. For each isotope, thirteen vibrational transitions from four vibrational levels (v"=0, 1, 2, and 3) of the lower 2p2 II to six (v’=0, 1, 2, 3, 4, and 5) of the upper 3s*Σ+ electronic state have been rotationally analyzed. Adiabatic potentials and dissociation energies for both states have been obtained through an inverse perturbation analysis. For the 2p2II state, a well depth of 212(5) cm-1 and an equilibrium separation of 4.36(2) a,, have been obtained. Analysis of the 3s2Σ+ electronic state has revealed a barrier greater than 60 cm'-1 above the atomic Li 3s asymptote and a well of 570(7) cm-1 located at 4.11(1) ao below the asymptote. An anomalously large spin-orbit constant of A =2.77(3) cm'1 was determined for the 2p2II (v" =0) state while no splitting is observed for transitions out of any 2p2II level with v" >0.


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