Optics and Spectroscopy

Profile of Ki 769.9- and 766.5-nm lines on resonance broadening

P. Kantor, N. P. Penkin, L. N. Shabanova

Published Jul 1, 1985• 0 citations

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Optics and Spectroscopy

Profile of Ki 769.9- and 766.5-nm lines on resonance broadening

P. Kantor, N. P. Penkin, L. N. Shabanova

Published Jul 1, 1985• 0 citations

OpenAlex

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Profiles of the singly ionized strontium resonance line at 421.6 nm (4p ${\mathrm{}}^{2}$ ${\mathrm{P}}_{1/2}$ --4s ${\mathrm{}}^{2}$ ${\mathrm{S}}_{1/2}$ ) which are collisionally broadened by argon have been measured from the line core to near-wing region (within the distance of \ensuremath{\Delta}\ensuremath{\nu}\ensuremath{\lesssim}50 ${\mathrm{cm}}^{\mathrm{\ensuremath{-}}1}$ from the line center). The observed broadening rate of the core is (1.87\ifmmode\pm\else\textpm\fi{}0.25)\ifmmode\times\else\texttimes\fi{}${10}^{\mathrm{\ensuremath{-}}20}$ ${\mathrm{cm}}^{\mathrm{\ensuremath{-}}1}$/${\mathrm{cm}}^{\mathrm{\ensuremath{-}}3}$ at 690 K. A clearly asymmetric profile has been observed in the wing region. These results are discussed by considering semiclassical impact and quasistatic theories combined with theoretical interaction potentials for the ${\mathrm{Sr}}^{+}$ -Ar pair which were previously reported by the present authors.Profiles of the singly ionized strontium resonance line at 421.6 nm (4p ${\mathrm{}}^{2}$${\mathrm{P}}_{1/2}$--4s ${\mathrm{}}^{2}$${\mathrm{S}}_{1/2}$) which are collisionally broadened by argon have been measured from the line core to near-wing region (within the distance of \ensuremath{\Delta}\ensuremath{\nu}\ensuremath{\lesssim}50 ${\mathrm{cm}}^{\mathrm{\ensuremath{-}}1}$ from the line center). The observed broadening rate of the core is (1.87\ifmmode\pm\else\textpm\fi{}0.25)\ifmmode\times\else\texttimes\fi{}${10}^{\mathrm{\ensuremath{-}}20}$ ${\mathrm{cm}}^{\mathrm{\ensuremath{-}}1}$/${\mathrm{cm}}^{\mathrm{\ensuremath{-}}3}$ at 690 K. A clearly asymmetric profile has been observed in the wing region. These results are discussed by considering semiclassical impact and quasistatic theories combined with theoretical interaction potentials for the ${\mathrm{Sr}}^{+}$-Ar pair which were previously reported by the present authors.

Physical Review AJan 1, 19872 citations

Profiles of the singly ionized strontium resonance line at 421.6 nm (4p

{\mathrm{}}^{2}

{\mathrm{P}}_{1/2}

--4s

{\mathrm{}}^{2}

{\mathrm{S}}_{1/2}

) which are collisionally broadened by argon have been measured from the line core to near-wing region (within the distance of \ensuremath{\Delta}\ensuremath{\nu}\ensuremath{\lesssim}50 ${\mathrm{cm}}^{\mathrm{\ensuremath{-}}1}$ from the line center). The observed broadening rate of the core is (1.87\ifmmode\pm\else\textpm\fi{}0.25)\ifmmode\times\else\texttimes\fi{}${10}^{\mathrm{\ensuremath{-}}20}$ ${\mathrm{cm}}^{\mathrm{\ensuremath{-}}1}$/${\mathrm{cm}}^{\mathrm{\ensuremath{-}}3}$ at 690 K. A clearly asymmetric profile has been observed in the wing region. These results are discussed by considering semiclassical impact and quasistatic theories combined with theoretical interaction potentials for the

{\mathrm{Sr}}^{+}

-Ar pair which were previously reported by the present authors.