Hello all, I've been reading about laser cooling, and when they speak of tuning the laser to a atomic transition, they write this (for example) as(adsbygoogle = window.adsbygoogle || []).push({});

"The laser cooling was performed on the [tex]D_2[/tex] transition ([tex]3S_{1/2} \rightarrow 3 P_{3/2}[/tex])".

But what do they mean by that notation? I'm clueless as what it is supposed to mean as it doesn't look like the spectroscopic notation (i.e the number 3 is NOT in superscript).

Best regards,

Jon

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# Atomic transition - What does this notation mean?

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