Animation of a trifluoroiodomethane molecule (carbon shown in black, fluoride in green, iodine in pink) responding to laser light. The light flash stretches the bond between the carbon and iodine atoms to a point where the bond can either break...
The side-to-side motion of electrons in a beam can be circular, elliptical, or linear, depending on the position of the Delta undulator's magnet rows. These different motions then create circular, elliptical, or linear polarization in the light pulse.
Deep inside rocky planets like Earth, the behavior of iron can greatly affect the properties of molten rock materials: properties that influenced how Earth formed and evolved.
In photosystem II, the water-splitting center cycles through four stable states, S0-S3. On a baseball field, S0 would be the start of the game when a batter on home base is ready to hit.
SLAC’s newly upgraded Linac Coherent Light Source (LCLS) X-ray free-electron laser (XFEL) successfully produced its first X-rays, creating unparalleled capabilities that will usher in a new era in research.
Lead Scientist, Stanford Synchrotron Radiation Lightsource (SSRL)
Areas of research: X-ray and ultrafast science; energy sciences; X-ray microscopy and X-ray characterization of materials far from equilibrium; energy storage; battery research; 3D metal printing
This movie shows the transition of a gold sample from a solid (dotted pattern) to a liquid (ring pattern) after being heated by a laser pulse. It was taken with SLAC’s ultrafast “electron” camera, an instrument for ultrafast electron diffraction...