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V L Velichanskiĭ, A S Zibrov, V S Kargopol'tsev, O R Kachurin, V V Nikitin, V A Sautenkov, G G Kharisov and D A Tyurikov
© 1980 American Institute of Physics
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Citation V L Velichanskiĭ et al 1980 Sov. J. Quantum Electron. 10 1244
DOI 10.1070/QE1980v010n10ABEH010516
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A semiconductor injection laser with an external resonator was used for the first time in saturation spectroscopy investigations. Two opposite equal-intensity beams were used to record the luminescence signal of potassium vapor. Saturation resonances in the Doppler profile of the 766.49-nm potassium D2 line were obtained as a result of a redistribution of the hyperfine-level populations in the ground state.
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