First direct observation of FEL (free-electron laser) lasing from lambda = 20 to 45(mu)m.

摘要

In recent experiments at Los Alamos, we directly observed for the first time free-electron laser (FEL) fundamental wavelengths from 20 to 45(mu)m. Our 1988 facility's demonstrated wavelength span now extends from 9 to 45(mu)m. Upgrades are in progress to increase this span. This wavelength region uniquely complements existing FEL applications facilities. 5 refs., 6 figs., 1 tab.