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arXiv · 1505.04779

Time-resolved UV-IR pump-stimulated emission pump spectroscopy to probe collisional relaxation of $8p\,^2P_{3/2}$ Cs I

Mohammed Salahuddin·Phill Arndt·Jacob McFarland·S. Burcin Bayram
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Abstract

We describe and use a time-resolved pump-stimulated emission pump spectroscopic technique to measure collisional relaxation in a high-lying energy level of atomic cesium. Aligned $8p\,^2P_{3/2}$ cesium atoms were produced by a pump laser. A second laser, the stimulated emission pump, promoted the population exclusively to the $5d\,^2D_{5/2}$ level. The intensity of the $5d\,^2D_{5/2}\rightarrow6s\,^2S_{1/2}$ cascade fluorescence at 852.12 nm was monitored. The linear polarization dependence of the $6s\,^2S_{1/2}\rightarrow8p\,^2P_{3/2}\rightarrow5d\,^2S_{5/2}$ transition was measured in the presence of argon gas at various pressures. From the measurement, we obtained the disalignment cross section value for the $8p\,^2P_{3/2}$ level due to collisions with ground-level argon atoms.

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Mohammed Salahuddin, Phill Arndt, Jacob McFarland, S. Burcin Bayram. 2015-05-18. Time-resolved UV-IR pump-stimulated emission pump spectroscopy to probe collisional relaxation of $8p\,^2P_{3/2}$ Cs I. https://doi.org/10.1016/j.optcom.2015.07.088

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