Photon Splitting in the Fields of Crystallographic Axes and Planes

摘要

The nonlinear quantum electrodynamic process of photon splitting into two photons in strong fields of the crystallographic axes and planes is investigated. The corresponding absorption coefficients are calculated for the case when a photon beam passes through crystal in parallel to its axes or planes. The obtained results which are applicable at relatively low photon energies, show that the absorption coefficients grow as approximately omega sup 5 when the photon energy omega increases and, at high values of omega they can exceed the corresponding coefficients for amorphous media. 24 refs.; 1 tab. (Atomindex citation 17:070382)