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- W2803446747 abstract "We demonstrate the generation of metastable krypton in the long-lived $1{s}^{5}$ state using laser excitation. The atoms are excited through a two-photon absorption process into the $2{p}^{6}$ state using a pulsed optical parametric oscillator laser operating near 215 nm, after which the atoms decay quickly into the metastable state with a branching ratio of 75%. The interaction dynamics are modeled using density matrix formalism and, by combining this with experimental observations, we are able to calculate photoionization and two-photon absorption cross sections. When compared to traditional approaches to metastable production, this approach shows great potential for high-density metastable krypton production with minimal heating of the sample. Here, we show metastable production efficiencies of up to 2% per pulse. The new experimental results gained here, when combined with the density matrix model we have developed, suggest that fractional efficiencies up to 30% are possible under optimal conditions." @default.
- W2803446747 created "2018-06-01" @default.
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- W2803446747 date "2018-08-31" @default.
- W2803446747 modified "2023-10-17" @default.
- W2803446747 title "Laser-Based Metastable Krypton Generation" @default.
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- W2803446747 doi "https://doi.org/10.1103/physrevlett.121.093201" @default.
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- W2803446747 hasPublicationYear "2018" @default.
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