Comparison of 87Rb N-resonances for D1 and D2 transitions
Abstract
We report an experimental comparison of three-photon-absorption resonances (known as "N-resonances") for the D1 and D2 optical transitions of thermal 87Rb vapor. We find that the D2 N-resonance has better contrast, a broader linewidth, and a more symmetric lineshape than the D1 N-resonance. Taken together, these factors imply superior performance for frequency standards operating on alkali D2 N-resonances, in contrast to coherent population trapping (CPT) resonances for which the D2 transition provides poorer frequency standard performance than the D1 transition.
Turn this paper into a full lesson
ArcXiv compiles a staged curriculum from this paper: 8-12 lessons across beginner → advanced, synthesised section guides, visuals, flashcards, a quiz, exercises, and on-demand deep dives per section. Grounded in the abstract, never invented.