This article or section is in need of attention from an expert on the subject. WikiProject Physics or the Physics Portal may be able to help recruit one. If a more appropriate WikiProject or portal exists, please adjust this template accordingly. (November 2008)
In atomic spectroscopy, the Autler-Townes effect (also known as AC, optical or dynamical Stark splitting) is a change in the absorption/emission spectra, induced by a strong oscillating (e.g., laser) field.