Spin-dependent two-photon Bragg scattering in the Kapitza-Dirac effect
Sven Ahrens, Zhenfeng Liang, Tilen Čadež, Baifei Shen
Abstract
We present the possibility of spin-dependent Kapitza-Dirac scattering based on a two-photon interaction only. The interaction scheme is inspired from a Compton scattering process, for which we explicitly show the mathematical correspondence to the spin dynamics of an electron diffraction process in a standing light wave. The spin effect has the advantage that it already appears in a Bragg scattering setup with arbitrary low field amplitudes, for which we have estimated the diffraction count rate in a realistic experimental setup at available x-ray free-electron laser facilities.
Topics & Concepts
PhysicsBragg's lawScatteringDiffractionSpin (aerodynamics)PhotonDirac (video compression format)Compton scatteringCondensed matter physicsQuantum mechanicsNeutrinoThermodynamicsCrystallography and Radiation PhenomenaAdvanced X-ray Imaging TechniquesTopological Materials and Phenomena