Resonant Secondary Emission Spectroscopy

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Abstract
A prospective view is taken of a new field of optical spectroscopy, unifying resonance Raman scattering and luminescence, with main emphasis on conceptual and theoretical aspects. The method consists in explicitly exploiting two independent sets of probes, (e, ω, k) and (e′, ω′, k′), i. e. polarization, frequency, and wave vector of incident and scattered photons, respectively. As compared with absorption spectroscopy, where one has only one set of probes (e, ω, k), the secondary emission spectroscopy gives higher information about the dynamics of the material: interaction in the intermediate states or relaxation, characterized experimentally and theoretically by the secondary emission intensity Is(e, ω, k; e′, ω′, k′), which is a measure of polarization‐, energy‐, and momentum‐correlation of incident and scattered photons.

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