Low-Energy Optical Absorption Peak in Aluminum and Al-Mg Alloys

Low energy interband transitions in aluminium

“…The spectrum is rather flat, dominated by a strong absorption peak near 1.5 eV and a much weaker one around 0.5 eV. This last structure was observed only quite recently with a calorimetric technique by Bos and i~nch [2]. These two structures are qualitatively well -"'described theoretically.…”

Hot electron lifetimes in metals probed by time-resolved two-photon photoemission

“…4.1 along X-W and W-K direction) [146,147]. As the parallel bands cross E F , distinct interband transitions open up, which can be observed, for instance, in the near-infrared absorption spectrum at k = 800 nm [148][149][150] and k = 2.5 lm [151,152] and which potentially offer new channels for the decay of electronic excitations in line with the observation of an overall reduced inelastic lifetime. However, modifications in the band structure will also affect the screening capability of the electron gas so that also an overall increase in the inelastic lifetime is possible.…”

Colored-Quark Version of Some Hadronic Puzzles

“…21 The influence of the band splitting and the relative difference between interband and intraband transitions become less when the energy transfer to an electron exceeds the band splittings. Therefore, it is expected that the plasmon dispersion will eventually, for increasing k, be well described within the jellium model-as is indeed the case.…”