Science Daily December 5, 2022
To make free-electron lasers (FELs) smaller and more cost-effective, an international team of researchers (Israel, Japan, Germany, France, USA – UT Austin) has demonstrated seeded FEL lasing in the ultraviolet regime based on laser-plasma accelerator-driven free-electron laser in a seeded configuration, where control over the radiation wavelength was accomplished. The appearance of interference fringes, resulting from the interaction between the phase-locked emitted radiation and the seed, confirmed longitudinal coherence. Based on their work the researchers anticipate a navigable pathway to extreme-ultraviolet wavelengths, paving the way towards smaller-scale free-electron lasers, unique tools for a multitude of applications in industry, laboratories, and universities…read more. Open Access TECHNICAL ARTICLEÂ
Experimental setup. Credit: Nat. Photon. (2022).Â