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Researcher Profiles

ORNL's Communications team works with news media seeking information about the laboratory. Media may use the resources listed below or send questions to news@ornl.gov.

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Oak Ridge National Laboratory entrance sign

The unique process of accepting a new supercomputer is one of the most challenging projects a programmer may take on during a career. When the Oak Ridge Leadership Computing Facility’s (OLCF’s) Verónica Melesse Vergara came to the United States from Ecuador in 2005, she never would have dreamed of being part of such an endeavor. But just last fall, she was.

To develop complex materials with superior properties, Vera Bocharova uses diverse methods including broadband dielectric spectroscopy. Credit: Oak Ridge National Laboratory, U.S. Dept. of Energy; photographer Jason Richards

Vera Bocharova at the Department of Energy’s Oak Ridge National Laboratory investigates the structure and dynamics of soft materials—polymer nanocomposites, polymer electrolytes and biological macromolecules—to advance materials and technologies for energy, medicine and other applications.

ORNL astrophysicist Raph Hix models the inner workings of supernovae on the world’s most powerful supercomputers.

More than 1800 years ago, Chinese astronomers puzzled over the sudden appearance of a bright “guest star” in the sky, unaware that they were witnessing the cosmic forge of a supernova, an event repeated countless times scattered across the universe.

Jon Poplawsky of Oak Ridge National Laboratory combines atom probe tomography (revealed by this LEAP 4000XHR instrument) with electron microscopy to characterize the compositions, structures, and functions of materials for energy and information technolog

Jon Poplawsky, a materials scientist at the Department of Energy’s Oak Ridge National Laboratory, develops and links advanced characterization techniques that improve our ability to see and understand atomic-scale features of diverse materials for energy and information technologi...

Natalie Griffiths kneading in watershed at ORNL
Growing up, Natalie Griffiths dreamed of playing shortstop for the Toronto Blue Jays. With a stint on the Canadian national women’s baseball team under her belt, Griffiths has retired her glove and now fields scientific questions about carbon and nutrient cycling and water quality ...
Clarice Phelps

More than 70 years ago, United States Navy Captain Hyman Rickover learned the ins and outs of nuclear science and reactor technology at the Clinton Training School at what would eventually become the Department of Energy’s Oak Ridge National Laboratory. Rickover applied his knowl...

Sheng Dai innovates chemical separations, nanomaterials synthesis, and catalytic interfaces for energy applications at Oak Ridge National Laboratory, and is the lab’s most prolific author.
Sheng Dai, the most prolific author ever at the Department of Energy’s Oak Ridge National Laboratory, had no intention of pursuing a career in science as a young man; he wanted to paint instead. But he couldn’t help noticing that the stones artists carved with their initials and ...
Matthew Ryder is researching next-generation materials using neutron scattering as a Clifford G. Shull Fellow at Oak Ridge National Laboratory’s Neutron Sciences Directorate. (Image credit: ORNL/Genevieve Martin)

Scientists and engineers are always searching for ways to solve the world’s biggest challenges, such as reducing carbon emissions, creating more effective cancer treatments, and increasing energy efficiency in electronics. Early career scientist Matthew R. Ryder, a Clifford G. ...

Leah Broussard leads a study of neutron decay to understand correlations between electrons and antineutrinos as well as subtle distortions in the electron energy spectrum.
Leah Broussard, a physicist at the Department of Energy’s Oak Ridge National Laboratory, has so much fun exploring the neutron that she alternates between calling it her “laboratory” and “playground” for understanding the universe. “The neutron is special,” she said of the sub...
ORNL researcher Jibonananda Sanyal applies high-performance computing to urban environment challenges.
The first time Jibonananda Sanyal ever logged into a supercomputing system, the landing page told him he could use up to 500 cores, a modest number for some but a significant amount for the early career researcher. “Up until then I had used two cores, at most,” he said. It wou...