24 February 2012 Optical gain and excitation phenomena in optically pumped alkali atom-rare gas mixtures
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In this paper we present experimental results on several features of optically excited alkali atoms. We describe small signal gain measurements including spatially-resolved gain in atomic Cs. We discuss observations of numerous near- to mid-IR emissions from states that are higher in energy than the pump beam photons. Finally we outline a measurement scheme to determine the threshold pump intensities for two types of optically excited alkali lasers.
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Kristin L. Galbally-Kinney, Kristin L. Galbally-Kinney, Dan L. Maser, Dan L. Maser, William J. Kessler, William J. Kessler, Wilson T. Rawlins, Wilson T. Rawlins, Steven J. Davis, Steven J. Davis, "Optical gain and excitation phenomena in optically pumped alkali atom-rare gas mixtures", Proc. SPIE 8238, High Energy/Average Power Lasers and Intense Beam Applications VI; Atmospheric and Oceanic Propagation of Electromagnetic Waves VI, 823805 (24 February 2012); doi: 10.1117/12.912863; https://doi.org/10.1117/12.912863


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