Dc Stark Effect Research Articles

Three-photon 16p resonant ionisation of Cs I

Presents an application of the effective-operators method to interpret resonant multiphoton ionisation. The authors study the three-photon ionisation of Cs I initially excited in state 6p, near the 16p resonance. In addition the DC Stark effect is analysed. Atomic quantities needed for the evaluation of effective operators are obtained by using a non-relativistic central potential model. Infinite summations are calculated by the Dalgarno method (1955). Theoretical results are compared with experimental data recently obtained by Normand et al. (1978). The main experimental features are reproduced well by the calculation described here.

Microwave-optical double resonance in NO 2

A series of experiments performed to establish the nature of the previously reported microwave optical double resonance signals in electronically excited nitrogen dioxide are reported. The DC stark effect, hyperfine spectrum, and microwave saturation behavior of the double resonance signals observed by exciting NO 2 with the 4880 Å line of an argon ion laser have been studied. The data presented support the assignment of this double resonance signal as occurring within the rovibronic manifold of the 2 B 2 electronic state. The observation of a number of new excited state microwave transitions is also reported.

Three-photon ionization of cesium atoms with resonance on high lying states

Three-photon ionization of cesium atoms is investigated with two-photon resonances on 16 2P 1 2 and 16 2P 3 2 states. Resonance profiles are studied, and exhibit the narrowest ionization widths observed until now. An application to the study of the dc Stark effect of the 16P states is reported.