Focusing of a tabletop soft-x-ray laser beam and laser ablation

Vinogradov, A. V., author; Kondratenko, V. V., author; Artioukov, I. A., author; Rocca, Jorge J., author; Ozols, A., author; Benware, B. R., author; Optical Society of America, publisher

Focusing of a tabletop soft-x-ray laser beam and laser ablation

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ECEjjr00061.pdf (1.19 MB)

Date

1999

Authors

Vinogradov, A. V., author

Kondratenko, V. V., author

Artioukov, I. A., author

Rocca, Jorge J., author

Ozols, A., author

Benware, B. R., author

Optical Society of America, publisher

Abstract

We focused the beam of a high-repetition-rate capillary-discharge tabletop laser operating at a wavelength of 46.9 nm, using a spherical Si/Sc multilayer mirror. The energy densities significantly exceeded the thresholds for the ablation of metals. Single-shot laser ablation patterns were used in combination with ray-tracing computations to characterize the focused beam. The radiation intensity within the 2-μm-diameter central region of the focal spot was estimated to be ≈1011 W/cm2, with a corresponding energy density of ~100 J/cm2.

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http://hdl.handle.net/10217/67523

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Focusing of a tabletop soft-x-ray laser beam and laser ablation

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