We're powering possibilities. A U.S. Department of Energy National Laboratory managed by Princeton University, the Princeton Plasma Physics Laboratory (PPPL) is tackling the world’s toughest science and technology challenges using plasma, the fourth state of matter. The Lab conducts essential research across a full range of plasma applications, whether it’s developing fusion as a potentially limitless power source, creating the next generation of materials for microelectronics and quantum sensors and devices, or electrifying chemical and materials manufacturing processes. Our Vision We envision a world powered by safe, clean and plentiful fusion energy while leading discoveries in plasma science and technology. Learn More About Our Vision ‎ As a world-class research laboratory managed by Princeton University, our mission has three main focuses:To develop the scientific knowledge and advanced engineering to enable fusion to power the U.S. and the world. To advance the science of nanoscale fabrication and sustainable manufacturing for technologies of tomorrow. To further the development of the scientific understanding of the plasma universe from laboratory to astrophysical scales. Our Work on Fusion The development of fusion as a sustainable energy source was the founding mission of PPPL in 1951 and remains the guiding star of the Lab. Our research produces breakthroughs into the scientific basis for producing fusion energy and develops rich insights into the nature and uses of plasma. Today, public and private researchers worldwide look to PPPL for guidance on plasma science and related engineering challenges. Explore Research ‎ Our fusion research starts with advancing the spherical tokamak as a reduced-cost magnetic fusion device. Our on-site experiments include:National Spherical Torus Experiment-Upgrade (NSTX-U)Lithium Tokamak Experiment-𝛽 (LTX-𝛽)Liquid Metal eXperiment Upgrade (LMX-U)MUSE ‎ Research Diversification Under the umbrella of the Lab’s Applied Materials and Sustainability Sciences (AMSS) Directorate, PPPL uses its expertise in plasma to serve as an economic driver of innovation in the science and application of low-temperature plasmas. This includes nanofabrication that enables next-generation microelectronics and quantum technologies, electrification of chemical and materials manufacturing, and understanding microphysical properties of aerosols. Explore AMSS ‎ Our People People are our greatest resource. The Lab is comprised of more than 600 scientists, engineers and operations staff — all of whom strongly contribute to our mission. We’re looking for passionate people to join us in this pursuit.Lab Community Explore Careers Partnerships PPPL partners with Princeton University, industry, local, state, and federal government agencies, and research institutions around the world. Our experts pursue basic scientific research that sometimes develops into a patentable or licensable concept.Explore Partnerships Our Experts Education & Workforce Development Underlying all our endeavors is the call to educate and inspire future generations for the national interest. Notably, we offer the first-in-the-nation registered apprenticeship program in fusion energy and engineering.Education Apprenticeships Related links DOE United States Department of Energy website DOE Office of Science website DOE Fusion Energy Sciences (FES) website DOE Princeton Site Office (PSO) Related documents At a Glance FY25_Final.pdf Bridging the Gaps FY25_Final.pdf Mission Unique Facilities FY25_Final.pdf