Tom Hopper

ALT A high-energy electron excitation (orange) of a semiconductor (composed of atoms represented by purple and green spheres) induced an ultrafast nonlinear optical response that can be detected using a laser (blue). (Ella Maru Studio)

ALT A vast, star-filled night sky is shown. Countless stars of varying brightness, including blue and orange hues, are scattered across the image. A few diffuse nebulae are faintly visible, blending into the dark backdrop of space.

ALT Aerial view of the SLAC National Accelerator Laboratory at sunset, surrounded by trees and distant hills. The sun casts a golden glow over the complex, with geometric patterns overlaying the left side of the image.

ALT Diagram illustrating a sequence labeled as Probe, Dump, and Pump with corresponding waves, interacting with a Sample to produce a Diffraction Pattern.

ALT Portrait of Jennifer Cochran standing outside in a sunny location, wearing red glasses, a red shirt, and a black blazer.

ALT A colorful diagram illustrating a sequence of waveforms labeled as Probe, Dump, Pump leading to a Sample. This results in a cone-shaped Diffraction Pattern on a circular screen. Credit: Greg Stewart/SLAC