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Two-photon ionization of trivalent atoms as a source of polarized electrons

1973; IOP Publishing; Volume: 6; Issue: 10 Linguagem: Inglês

10.1088/0022-3700/6/10/002

1747-3721

Péter Faragó, David Walker,

Mechanical and Optical Resonators

It is argued that photo-electrons emitted from trivalent atoms in a two-photon ionization process are totally polarized if the incident light is of total circular polarization and its wavelength matches the resonance condition for the transition between ground state (n2P12/) and the first excited state (n+1)2S12/. The estimated photoionization yield compares favourably with that of the analogous process in alkali atoms. Some of the most important conditions for a successful experiment are considered.