PASER A Novel Acceleration Scheme Demonstrated: "The technology may provide a brand new tool for the emerging field of nanoscience because the “cool” electrons produced will enable more precise x-ray probes of ultra-small structures. Both the essence of the concept and the proof-of-principle experiment performed at the ATF are described in an upcoming publication in Physical Review Letters.

“This is the first experimental evidence that energy can be transferred from excited atoms/molecules to free electrons in a coherent way,” said Samer Banna, a co-author on the paper with Levi Schächter and Valery Berezovsky. “In other words, this is the first demonstration of coherent collisions of the second kind.” "