Linac Coherent Light Source (LCLS)

The Linac Coherent Light Source (LCLS) at SLAC National Accelerator Laboratory is an Office of Science User Facility operated for the U.S. Department of Energy by Stanford University. LCLS is the world’s first hard X-ray free-electron laser, offering unparalleled capabilities to explore the fundamental properties of matter. Operating at the frontier of science, LCLS enables groundbreaking research in physics, chemistry, materials science, and biology by providing ultra-bright, ultra-short X-ray pulses. Our facility empowers researchers to capture atomic-scale snapshots of chemical reactions in real time, explore extreme states of matter, and unravel complex biological processes with unprecedented clarity. With its transformative impact on scientific discovery, LCLS is driving innovation in a wide range of fields, from energy research to drug development. At LCLS, we are committed to pushing the boundaries of what’s possible, fostering a collaborative environment for scientists from around the world, and advancing knowledge to address some of the most pressing challenges of our time. Join us in exploring the future of science at LCLS, where we are not just observing the world—we're transforming it.