Abstract
Studies concerning two aspects of the strong-field multiphoton response of matter are discussed, namely, (1) the generation of excited states and (2) the propagation of extremely intense radiation in plasmas. Fluorescence in the 7 – 79 nm region arising from excited ionic states produced in gas targets composed of the rare gases and N2 is examined. Emissions from complex transition arrays stemming from open nd configurations in Kr and Xe are observed. Strong-field conditions are expected to produce significantly altered characteristics of propagation in plasmas which include the possibility of a new mode of channeled propagation.
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McPherson, A., Luk, T.S., Gibson, G., Solem, J.C., Boyer, K., Rhodes, C.K. (1989). Studies of strong-field effects in multiphoton subpicosecond excited plasmas: Soft X-ray fluorescence and propagation. In: Ehlotzky, F. (eds) Fundamentals of Laser Interactions II. Lecture Notes in Physics, vol 339. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-51430-9_8
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