Abstract
A theory is presented of radiation trapping effects in time-resolved, stepwise-excited, electron-photon coincidence signals. The theory is based on a detailed analysis of laser-induced optical pumping effects in the stepwise excitation process combined with a multipole treatment of the radiation trapping processes. New data from a stepwise excitation experiment on the inelastic excitation of the 6 1P1 state in e--Hg collisions and previously reported data are compared with the predictions of the theory. Good agreement is found between experiment and theory, including confirmation that under some experimental conditions, the P10 Stokes parameter of the coincidentally detected stepwise excited fluorescence increases in magnitude with increasing target gas density.
Original language | English |
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Pages (from-to) | 3884-3895 |
Number of pages | 11 |
Journal | Physical Review A |
Volume | 53 |
Issue number | 6 |
Publication status | Published - Jun 1996 |