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Dynamical theory of diffraction
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<p>The dynamical theory of diffraction describes the interaction of <a href="/facts/Wave/fU0HH6St">waves</a> with a regular <a href="/facts/Lattice_model_(physics)/TY3bVAhk">lattice</a>. The wave fields traditionally described are <a href="/facts/X-rays/wseP79cN">X-rays</a>, <a href="/facts/Neutron_radiation/LVJhCcwL">neutrons</a> or <a href="/facts/Electrons/L0KBo5cW">electrons</a> and the regular lattice are atomic <a href="/facts/Crystal_structure/bJ4bCeHd">crystal structures</a> or <a href="/facts/Nanometer/a98sjHyu">nanometer</a>-scale <a href="/facts/Multi-layer/x0HJl3lK">multi-layers</a> or self-arranged systems. In a wider sense, similar treatment is related to the interaction of light with optical <a href="/facts/Band-gap/IjIeh95l">band-gap</a> materials or related wave problems in <a href="/facts/Acoustics/2GpQUymy">acoustics</a>. The sections below deal with dynamical diffraction of X-rays. </p>