Two-photon line shapes with near-resonant enhancement |
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| Authors: | H.-R. Xia G.-Y. Yan A.L. Schawlow |
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| Affiliation: | Department of Physics, Stanford University, Stanford, CA 94305, USA |
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| Abstract: | We have studied a number of Doppler-free two-photon lines in Na2 that are strongly enhanced by very nearly resonant intermediate states. Both experimentally and theoretically, it is found that the ratio of the height of the Doppler-free line to the Doppler-broadened background is a maximum when the offset of the enhancing level is about equal to the Doppler half-width. |
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