[AntonioLao]

Dave,

Where can I get calibrated images that show spectral lines before and after splitting?

The following site shows schematic diagram of spectral lines splitting for sodium.
http://hyperphysics.phy-astr.gsu.edu...um/sodzee.html

More information about the Zeeman effects
http://www.pha.jhu.edu/~rt19/hydro/node10.html

[dleviwing]

Antonio;
Sorry, I did not interpret your post as referring to this Zeeman effect phenomena that changes the elements orbital electron states.
Can I assume you did the art work then?
You may find more information under Chromatography. I don't know of any instrumentation designed to actually create an image. Interferometry is another instrument that may have been used to detect this effect.

[AntonioLao]

Dave,

Thanks for the information. Your assumption about the artwork is partially correct and were made for illustration purposes not for any serious analysis or calibration.