Resonantly-Enhanced, Four-Photon Ionization Of Krypton At Laser Intensities Exceeding 10[sup]13[/sup] W/Cm[sup]2[/sup])

Michael D Perry; Otto L Landen; E.Michael Campbell

doi:10.1117/12.965121

11 July 1988 Resonantly-Enhanced, Four-Photon Ionization Of Krypton At Laser Intensities Exceeding 10¹³ W/Cm²)

Michael D Perry, Otto L Landen, E.Michael Campbell

Proceedings Volume 0913, High Intensity Laser-Matter Interactions; (1988) https://doi.org/10.1117/12.965121
Event: 1988 Los Angeles Symposium: O-E/LASE '88, 1988, Los Angeles, CA, United States

Abstract

The yield of singly- and multiply- charged ions of krypton and xenon is presented as a function of laser intensity and frequency. The measurements were performed using the second harmonic output of a well-characterized, tunable picosecond dye laser in the range 285 to 310 nm at laser intensities from lx10¹² to 10¹⁴ W/cm². Enhancement of the Kr⁺ yield by two orders of magnitude by three-photon resonant, four-photon ionization is observed in the vicinity of the 4d'[5/2]₃ and the 4d[3/2)₁ intermediate states. A model incorporating line shifts and widths scaling linearly with intensity is in good agreement with the experimental results.

Citation Download Citation

Michael D Perry, Otto L Landen, and E.Michael Campbell "Resonantly-Enhanced, Four-Photon Ionization Of Krypton At Laser Intensities Exceeding 10¹³ W/Cm²)", Proc. SPIE 0913, High Intensity Laser-Matter Interactions, (11 July 1988); https://doi.org/10.1117/12.965121

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