scispace - formally typeset
Search or ask a question

Showing papers by "Ugo Fano published in 1969"


Journal ArticleDOI
Ugo Fano1
TL;DR: In this paper, the spin-orbit interaction is considered in terms of a Hilbert transform of the spectrum of unperturbed dipole matrix elements weighted by the effect of spinorbit interaction and the theory of this parameter is adapted from Fermi's interpretation of doublet intensity ratios and from Seaton's related interpretation of photoabsorption minima.
Abstract: Photoelectrons emitted by Cs vapor exposed to circularly polarized light with $2750\ensuremath{\lesssim}\ensuremath{\lambda}\ensuremath{\lesssim}3150$ \AA{} should have spin orientation $\ensuremath{\gtrsim}85%$ parallel to the light's angular momentum. Measurements of this orientation along the spectrum may be represented by a parameter $x$ defined theoretically in terms of a Hilbert transform of the spectrum of unperturbed dipole matrix elements weighted by the effect of spin-orbit interaction. The theory of this parameter is adapted from Fermi's interpretation of doublet intensity ratios and from Seaton's related interpretation of photoabsorption minima. Semiquantitative estimates are drawn from experimental data on photoabsorption.

288 citations


Journal ArticleDOI
Ugo Fano1

78 citations