Formation of x-ray Newton’s rings from nano-scale spallation shells of metals in laser ablation
Source abstract
Abstract
The initial stages of the femtosecond (fs) laser ablation process of gold, platinum, and tungsten were observed by single-shot soft x-ray imaging technique. The formation and evolution of soft x-ray Newton’s rings (NRs) were found for the first time. The soft x-ray NRs are caused by the interference between the bulk ablated surface and nanometer-scale thin spallation layer; they originate from the metal surface at pump energy fluence of around 1 J/cm2 and work as a flying soft x-ray beam splitter.
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Research context
OpenAlex topics: Laser Material Processing Techniques · Diamond and Carbon-based Materials Research · Advanced X-ray Imaging Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
National Institutes for Quantum and Radiological Science and Technology 1 Department of Advanced Photon Research, , Kizugawa, Kyoto 619-0215, Japan
Tokushima University 2 Faculty of Engineering, , Tokushima 770-8506, Japan
The University of Tokyo 3 Institute for Solid State Physics, , Kashiwa-shi, Chiba 277-8581, Japan
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