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The Linac Coherent Light Source at SLAC, the world’s first hard X-ray free-electron laser, takes X-ray snapshots of atoms and molecules at work, revealing fundamental processes in materials, technology and living things.

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Rooftop view of Linac Coherent Light Source (LCLS)

News Feature

SSRL and LCLS scientists will help visiting research teams solve their experimental challenges, then apply what they’ve learned to help others work more efficiently.

Diagram of a complex molecule
News Brief

It can help operators optimize the performance of X-ray lasers, electron microscopes, medical accelerators and other devices that depend on high-quality beams.

Artistic representation of a neural network superimposed on an electron beam profile
News Feature

This new understanding could aid the development of more efficient clean energy sources.

electron transfer
News Feature

A better understanding of the failure process will help researchers design new materials that can better withstand intense events such as high-velocity impacts.

material failure
News Feature

When upgrades to the X-ray laser at the Department of Energy’s SLAC National Accelerator Laboratory are complete, the powerful new machine will capture up...

Infographic on LCLS-II data.
News Feature

Scientists get dramatically better resolution at X-ray free-electron lasers with a new technique.

timingjitter
News Feature

Knowledge of physics and a love of challenges fuel May Ling Ng’s quest for nanometer perfection in the smooth surfaces of mirrors used at...

A woman stands in a long hallway with scientific equipment
News Feature

These fleeting disruptions, seen for the first time in lead hybrid perovskites, may help explain why these materials are exceptionally good at turning sunlight...

An illustration shows polarons as bubbles of distortion in a perovskite lattice
News Feature

The results, which show that ultrafast atomic motions are the first step in forming a magnetic state, could lead to faster and more efficient...

Charge transfer
Animation
As this animation shows, polaronic distortions start very small and rapidly expand outward in all directions to a diameter of...
Animation of polaronic distortions expanding in an atomic lattice
Illustration

An illustration shows polarons – fleeting distortions in a material’s atomic lattice ––in a promising next-generation energy material, lead hybrid perovskite.

Polarons, bubbles of distortion in a perovskite lattice.
News Feature

The lab’s X-ray laser recently joined other facilities in making remote science possible from any corner of the world, a trend that will likely...

Remote experiments in the control room at LCLS