Arizona State University researchers just turned their compact X-ray lab into a national facility open to scientists everywhere. Their first big experiment offers a glimpse of why this matters. It captured the hidden dance of atoms inside a quantum material, a process that unfolds faster than you can imagine. This isn’t just a scientific curiosity. It’s a fundamental shift in how we can observe the building blocks of technology, from disease-fighting proteins to next-generation electronics.
Think about trying to take a photo of a hummingbird’s wings. You need a very fast shutter speed. The same principle applies here, but the timescales are almost incomprehensibly small. The team at ASU’s CXFEL lab works in femtoseconds. One femtosecond is to one second what one second is to about 32 million years. At that speed, you can freeze-frame the motion of atoms and electrons without the heat of the experiment destroying the sample. Their target was a material called 1T-tantalum disulfide. It holds promise for advanced memory storage and quantum computing. Scientists heated it with a precise infrared laser pulse. That pulse instantly excites the atoms, shifting their arrangement into what’s called a charge density wave. To see this happen, they had to hit the excited sample with an X-ray pulse at nearly the exact same moment. The timing had to be perfect, within a billionth of a second. Get it wrong and the atoms would relax back to normal before the X-rays could capture the change.
Samuel Teitelbaum, an ASU physicist on the project, describes it as watching a new phase of the material be born. The X-ray measurements tracked microscopic domains merging into larger regions over a few trillionths of a second. This ability to watch a material change under stress is invaluable. It tells engineers how a component might fail in real-world conditions like a circuit board frying under heat. More broadly, it proves this compact X-ray source can act as a high-speed camera for the quantum world.
The success of this test on a solid material paves the way for the team’s next major goal. They plan to turn their X-ray pulses on proteins. These will be proteins crucial to understanding human diseases or for developing new renewable energy technologies. Seeing how these complex molecules move and change shape could unlock entirely new approaches to medicine and clean energy.
The facility, supported by the National Science Foundation and philanthropy, is built in two phases. The first instrument, the Compact X-ray Light Source, has now proven its capability. Construction is already underway on a second, more advanced tool called the CXFEL femtosecond laser, slated for completion in 2028. Director Arvinder Sandhu emphasizes the uniqueness of the project. Building an X-ray laser of this capability at a university, in a relatively small footprint, is a world first. It democratizes access to a tool that was once only available at massive, billion-dollar national labs. By making it a national user facility, ASU is inviting scientists from all disciplines to propose experiments.
- About 80 laser experts
- Computer scientists
- Biologists
- Engineers
- New approaches to medicine
- Clean energy technologies
The team have created more than a powerful microscope. They have built a new window into the fastest processes in nature. What they see through it will reshape our understanding of materials, medicine, and the fundamental rules of physics.
| Instrument | Status | Completion Date |
|---|---|---|
| Compact X-ray Light Source | Operational | Completed |
| CXFEL femtosecond laser | Under Construction | 2028 |
