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Cornell engineers used laser pulses to control changeable properties in a quantum material, pioneering a method that may have wide applications across a class of materials with immense technological interest.
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IMAGE: An illustrative scenario of the observed effect is shown. The pulses with a subpicosecond duration pulsed in the soft X-ray generated from FERMI@elettra interacts with a submicrometric metallic foil. The. view more
Credit: by Carino Ferrante, Emiliano Principi, Andrea Marini, Giovanni Batignani, Giuseppe Fumero, Alessandra Virga, Laura Foglia, Riccardo Mincigrucci, Alberto Simoncig, Carlo Spezzani, Claudio Masciovecchio, Tullio Scopigno.
The relevance for radiology applications is probably the most known advantage of X-ray beams (keV energies) with respect to visible radiation (eV energies) and can be traced back to their superior penetration depth. On a more fundamental ground, however, the relevance of this photon energy range relies on the capability of probing inner shell electrons (as they have comparable binding energies) and mapping molecular structures on the atomic-scale (as typical interatomic spacings are comparable to X-ray wavelengths). Buil