Soft X-Ray Laser Microscopy

DiCicco, D.; Meixler, Lewis D.; Skinner, C. H.; Suckewer, S.; Hirschberg, Joseph; Kohen, Elli

doi:10.1007/978-3-540-39246-0_9

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…Plasma X-ray lasers have been given attention in scientific and engineering fields [1][2][3][4], including X-ray microscopy [5], X-ray photoelectron spectroscopy [6], X-ray lithography [7], and X-ray holography [8]. For the generation of a population inversion to achieve laser oscillation, two pumping schemes have been proposed and demonstrated in terms of lasing actions so far, and these are the collisional electron excitation scheme [9][10][11] and the recombination plasma scheme [12,13].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Gain Coefficient of Li-Like Ion 3d-4f Soft X-ray Laser Oscillation by a Single Resonator

Namba

Wang

Ohiro

et al. 2022

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A recombination plasma soft X-ray laser that is associated with Li-like Aluminum ion Al10+ 3d-4f transition (wavelength: 15.47 nm) was investigated to increase the gain coefficient. By optimizing the time interval of the 16-pulse train, higher-density plasma with a low temperature could be generated, and thus, we obtained the gain coefficient of 9.84 cm−1 at the pump laser pulse energy which was as low as 3 J. To further enhance the X-ray laser output energy, the single resonator which was installed by using a Mo/Si multilayer mirror that has a high reflectivity of 0.45 at 15.5 nm, and the X-ray spectrum after the double pass in the lasing medium was measured. As a result, the output intensity was increased to be 1.5 times higher than t=when it was compared with those that were conducted with no X-ray mirror.

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