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We describe the implementation of a zone plate microscope for atwavelength characterization of extreme ultraviolet masks. The microscope uses as illumination the 13.2 nm wavelength output from a table-top Ni-like Cd laser. The microscopy allows inspection of EUVL masks under illumination conditions similar to those used in a 4×-demagnification lithographic stepper. High quality EUV images of absorption...
The results of an investigation into X-ray lasing in Ni-like Sm, pumped by a frequency doubled pre-pulse and a fundamental short pulse, are presented. Strong lasing was observed across the 4d3/2-4p3/2 transition at 7.3 nm. A weaker laser line of wavelength 6.9 nm was also present from the 4d3/2-4p1/2 transition. The XRL output was seen to be sensitive to both delay between the pre-pulse and the heating...
This paper gives an overview of recent progress in the study of laser-driven plasma x-ray lasers in Japan Atomic Energy Agency (JAEA). Fully spatial coherent plasma soft x-ray laser (SXRL) at 13.9 nm with 0.1 Hz repetition rate is now routinely used in the wide variety of the applications: The highlights of these applications are the study of fluctuation in the atomic structure of ferroelectric substances...
As ~ 250J laser energy could be available for the 100ps pulse at 1.053µm wavelength on the upgraded Shenguang II laser facility in the near future, Ni–like Ta X-Ray laser driven by a single 100ps laser pulse at 0.53µm wavelength on the upgraded Shenguang II laser facility was theoretically studied. Simulations show that by properly designing, several sequential or serial targets could overcome plasma...
Development of x-ray lasers using the PHELIX laser at the GSI Helmholtz center for heavy-ion research [1] is targeting a number of applications of novel x-ray sources in combination with energetic heavy-ion beams. This includes Thomson scattering diagnostics of heavy-ion driven plasmas, x-ray opacity measurements, and x-ray laser spectroscopy of highly-charged ions. Developments centered on the application...
LASERIX is a high-power laser facility delivering High-repetition-rate XUV laser beams pumped by Titanium:Sapphire laser. The aim of this laser facility is to offer to the users community Soft XRLs in the 30-7 nm range and auxiliary IR beam for a broad range of applications. In this contribution, the main results concerning both the development of XUV sources and their use for applications (irradiation...
H-like and He-like resonantly photo-pumped laser schemes were proposed for producing X-ray lasers nearly four decades ago. However, demonstrating these schemes in the laboratory has proven to be elusive. One major challenge has been the difficulty of finding an adequate resonance between a strong pump line and a line in the laser plasma that drives the laser transition. After finding a good resonance,...
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