Coincidence in the two - photon spectra of Li and Li 2 at 735
نویسندگان
چکیده
Abstract A coincidence between the 2 S1/2–3 S1/2 two-photon transition in the atomic spectrum of 6Li and the X 1 + g → E 1 + g two-photon ro-vibrational series of Li2 was observed near 735 nm in a heat pipe oven using a tunable laser and thermionic diode detection scheme. The molecular transition obscures one component of the 6Li atomic transition. Selective detection of the atomic transition was obtained by adding an intensity-modulated laser that drives atoms from the 3S to 16P state. The coincident molecular transition and four nearby molecular lines were identified using previously determined Dunham coefficients.
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