= Stark spectroscopy
{wiki=Stark_spectroscopy}
Stark spectroscopy is a technique used to investigate the interactions between electric fields and atomic or molecular systems. It relies on the Stark effect, which describes the phenomenon where an external electric field causes a shift and splitting of energy levels in atoms or molecules. This effect is named after Johannes Stark, who discovered it in 1913. In Stark spectroscopy, an external electric field is applied while measuring the absorption or emission spectra of a sample.
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