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Stroboscopic detection of nuclear resonance in an arbitrary scattering channel

“…The beating time response to a single short polychromatic photon bunch of SR is obtained by the Fourier transform of the energy domain scattering matrices (Gerdau & DeWaard, 1999;Hannon et al, 1985a),…”

“…Nuclear resonant scattering (NRS) of synchrotron radiation (SR) has become an established method for the study of nuclear hyperfine interaction during the last two decades (Gerdau & DeWaard, 1999;Röhlsberger, 2005). The spectrum is conventionally recorded as the time response of the nuclear ensemble following a short resonant synchrotron pulse, which simultaneously excites all resonant transitions between hyperfine-split nuclear sublevels.…”

“…Grazing-incident NRS of SR, often called Synchrotron Mössbauer Reflectometry (SMR) (Gerdau & DeWaard, 1999;Deák et al, 2001;Deák et al, 2002), has been established in both time and angular regime (Chumakov et al, 1999;Deák et al, 2002;Nagy et al, 1999), as time differential (TD) and time integral (TI) SMR, respectively.…”

Nuclear γ-ray superradiance

“…The latter are necessary because of the counter-rotating parts in Equation (20). One might expect another term with one-atom/two-photon excitations in Equation (21), but that one does not directly couple to the terms through any of the operator sequences yây , yâ ,â y , orâ in Ĥ , and is therefore omitted here.…”

“…[19,20]. For this reason, nuclear -ray resonance has been studied extensively, and theories for nuclear-resonant scattering have been formulated.…”