Editing Stark spectroscopy

{{Short description|Form of spectroscopy based on the Stark effect}}
{{one source|date=December 2010}}
{{Use dmy dates|date=June 2024}}
'''Stark spectroscopy''' (sometimes known as '''electroabsorption/emission spectroscopy''') is a form of [[spectroscopy]] based on the [[Stark effect]]. In brief, this technique makes use of the Stark effect (or electrochromism) either to reveal information about the physiochemical or physical properties of a sample using a well-characterized electric field or to reveal information about an electric field using a reference sample with a well-characterized Stark effect.

The use of the term "Stark effect" differs between the disciplines of chemistry and physics. Physicists tend to use the more classical definition of the term (see [[Stark effect]]), while chemists usually use the term to refer to what is technically [[electrochromism]].<ref>Liptay, W. ''Berichte der Bunsengesellschaft für physikalische Chemie''. '''1974''', 80, 207–217.; Liptay, W. ''Excited States''. 129–159.</ref> In the former case, the applied electric field splits the atomic energy levels and is the electric field analog of the [[Zeeman effect]]. However, in the latter case, the applied electric field changes the molar [[absorption coefficient]] of the sample, which can be measured using traditional absorption or emission spectroscopic methods. This effect is known as electrochromism.

==See also==
*[[Stark effect]]
*[[Plasma diagnostics]]

==References==
{{Reflist}}

{{DEFAULTSORT:Stark Spectroscopy}}
[[Category:Spectroscopy]]