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May 17, 2021 at 19:34 history edited Andrew Steane CC BY-SA 4.0
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May 17, 2021 at 18:46 comment added Lysenkoism Yeah that's what I was more interested in, laser spectroscopy. I'm just curious how the methods have changed since then. I'll take a look at the resource.
May 17, 2021 at 18:43 comment added Massimo Ortolano @Lysenkoism The fine and hyperfines structure of the energy levels were already known in the 1920s-1930s (actually the sodium doublet was discovered even before, at the end of the XIX century). A nice old book about this is this one. It was written in the 1937, and so is interesting from an historical perspective (don't expect to find a description of modern spectroscopic methods). If you want to discover modern spectroscopic techniques, you can have a look at Wolfgang Demtröder, Laser spectroscopy
May 17, 2021 at 18:29 vote accept Lysenkoism
May 17, 2021 at 18:27 comment added Lysenkoism Very interesting, I did not consider that. On a somewhat unrelated note, how long have instruments been able to detect these triplet splittings in hydrogen, and what specific methods of spectroscopy were utilized if you know.
May 17, 2021 at 18:09 history answered Andrew Steane CC BY-SA 4.0