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Home : Our Work : Areas of Research : Plasma Physics

    Plasma Physics

Phone: (202) 767-5635

 

Overview

The Plasma Physics Division conducts broad theoretical and experimental programs of basic and applied research in plasma physics, laboratory discharge, and space plasmas, intense electron and ion beams and photon sources, atomic physics, pulsed power sources, laser physics, advanced spectral diagnostics, and nonlinear systems. 

The effort of the Division is concentrated on a few closely coordinated theoretical and experimental programs. Considerable emphasis is placed on large-scale numerical simulations related to plasma dynamics; ionospheric, magnetospheric, and atmospheric dynamics; nuclear weapons effects; inertial confinement fusion; atomic physics; plasma processing; nonlinear dynamics and chaos; free electron lasers and other advanced radiation sources; advanced accelerator concepts; and atmospheric laser propagation.

Core Capabilities 

  • Radiation Hydrodynamics - The principal emphasis is in the development and application of theoretical models and state-of-the-art numerical simulations combining magnetohydrodynamics, high energy density physics, atomic and radiation physics, and spectroscopy.
  • Laser Plasma - Primary areas of research include physics underpinnings of laser fusion, high-energy-gain laser-inertial- fusion target designs, experiments and simulations of laser-matter interactions at high intensity, advancing the science and technologies of high-energy krypton fluoride and argon fluoride lasers, advancing the technologies of durable high-repetition-rate pulse power and electron-beam diodes for laser pumping and other applications, laser fusion as a power source.
  • Space and Laboratory Plasmas - Space research includes theoretical, numerical, and laboratory and space experimental investigations of the dynamic behavior of the near-Earth space plasmas and radiation belts, and the modification of space plasmas for strategic effects on HF communications, satellite navigation, over-the-horizon radar, and UHF satellite communications.  Applications-oriented plasma research is performed in the production, characterization, and use of low-temperature plasmas and related technology for applications to advance capabilities across the Navy and DOD.  Pulsed-power investigations include electromagnetic launch science and technology and research on directed energy systems for the U.S. Navy.
  • Pulsed Power Physics - Experimental and theoretical research is performed to advance pulsed power driven accelerator technology in areas relevant to defense applications. Research concerns the production, transport, characterization, and modeling of pulsed plasmas and intense high-power, charged particle beams using terawatt-class hundred-kilojoule pulsed power systems that employ capacitive or inductive energy storage and advanced switching. 
  • Directed Energy Physics - Research encompasses the integration of theoretical/computational and experimental research relevant to DOD, ONR, DARPA, and DoE in the areas of ultra-high field laser physics, atmospheric propagation of intense lasers, advanced radiation and accelerator physics, laser-generated plasma-microwave interactions, and dynamics of nonlinear systems. 

Facilities Fact Sheets

  • Electra Experimental Lab Facility - Electron beam pumped laser.  [ Download PDF]
  • NIKE KrF Laser Target Facility.  [Download PDF]
  • Space Plasma Simulation Chamber.  [Download PDF]

Plasma Physics News

NEWS | March 21, 2024

NRL Mechanical Engineer Saikat Dey Named AIAA Associate Fellow

By Nicholas E. M. Pasquini, U.S. Naval Research Laboratory Corporate Communications

U.S. Naval Research Laboratory (NRL) researcher Saikat Dey, Ph.D., named American Institute of Aeronautics and Astronautics (AIAA) Associate Fellow for significant and lasting contributions to the aerospace profession during an awards ceremony held at the Hyatt Regency in Orlando, Fla., Jan. 10, 2024.

“Dr. Dey’s remarkable contributions to Defense computational mechanics and the aerospace field are one highlight in a remarkable career at NRL,” said NRL Acoustics Division (Acting) Superintendent Zachary Waters, Ph.D. “His strategic research not only fosters collaboration across the Naval Research Enterprise but also ignites innovation within the broader defense community. Dr. Dey’s impact is profound, shaping the future of how computational mechanics is leveraged with his groundbreaking achievements.”

AIAA Associate Fellows are individuals of distinction who have made notable and valuable contributions to the arts, sciences, or technology of aeronautics or astronautics.
 
“I am honored to be recognized as an AIAA Associate Fellow by my peers for my technical contributions,” said Dey, NRL Acoustics Division Theoretical and Numerical Techniques Section Head. “Computational mechanics is increasingly critical for design and performance evaluation of complex engineering systems ultimately providing our Navy assets significant and timely technical superiority.”

Each year, only one for every 150 voting members is selected and approved. The selection process is highly competitive, and only approximately 17% of the AIAA membership are associate fellows.

“Algorithms and numerical techniques developed as part of my research at NRL have been used to study the structural-acoustic response of underwater platforms and sonar systems for undersea-warfare applications,” Dey said. “Geometry modeling and discretization algorithms we have developed are being used to model complex flows around aircrafts, helicopters and submarines as well as the performance of RF antennas on various platforms.”

Dey is the original developer of hp- finite and infinite element solver Structural Acoustic Radiation and Scattering (STARS-3D), which has been extensively used for both interior and exterior structural-acoustics simulations of complex aerospace and underwater Navy applications. His development and application of these techniques, algorithms, and software have also been transitioned directly to the Navy Shipyards where they are in regular production use and impacting Department of Defense (DOD) programs of record.

The flagship numerical solver STARS-3D, installed on high-performance computers of DoD HPCMP, is used by a number of institutions throughout the Naval Research Enterprise.

As the project manager since its inception, Dey has provided technical excellence and judiciousness for the Foundational Technologies (FT) effort within the DOD High Performance Computing Modernization Program (HPCMP) and Computational Research and Engineering Acquisition Tools and Environments (CREATE) program.

“Starting from scratch, CREATE-FT has produced Capstone, a software platform that provides the geometry, meshing, and analysis attribution capabilities to address a wide-range of DOD physics-based applications including aerodynamics of fixed and rotary-wing vehicles, hydrodynamics of surface and undersea vehicles, and electromagnetic analyses of air and sea systems,” said David McDaniel, Ph.D., U.S. Army Corps of Engineers Associate Director for CREATE for the DoD's HPCMP who nominated Dey as an AIAA Associate Fellow.

The HPCMP is managed by the Information Technology Lab of the U.S. Army's Engineer Research and Development Center. 

Capstone’s fully automated algorithms for generating and adapting anisotropic surface and volume meshes for complex geometries, including resolving complex flow-features such as viscous boundary-layers, is providing a critical foundational capability to thousands of scientists and engineers in the CREATE user base across industry, government, and academia. 

“The adoption and use of Capstone across the DOD acquisition enterprise demonstrates his technical vision, leadership and team-building skills in service of the broader aerospace community,” McDaniel said. “Dr. Dey continues to provide leadership and service to the AIAA and other technical societies. He has proven to be a consequential Senior Member of AIAA with his participation in panels related to CFD 2030 Vision, his role as Technical Discipline Chair for the Meshing Visualization and Computational Environments Technical Committee, workshops identifying technical roadblocks, and technical ideas to advance the state-of-the-art in geometry-based discretization and meshing techniques.”

The NRL Theoretical and Numerical Techniques Sections carries out a number of Science & Technology and applied efforts providing leadership for the DOD HPCMP’s CREATE-FT effort that develops Capstone geometry and meshing platforms.

“In the applied efforts, the mission includes developing algorithms and computational tools to enable physics-based analyses and digital engineering capabilities for major DOD systems,” Dey said. “Ongoing research is addressing robust prediction of structural-acoustic response of complex underwater structures in the presence of uncertainty and disorder as well as development of rapid digital surrogates for Navy assets derived from fusing sensor-based data with physics-based models.”


About the U.S. Naval Research Laboratory

NRL is a scientific and engineering command dedicated to research that drives innovative advances for the U.S. Navy and Marine Corps from the seafloor to space and in the information domain. NRL is located in Washington, D.C. with major field sites in Stennis Space Center, Mississippi; Key West, Florida; Monterey, California, and employs approximately 3,000 civilian scientists, engineers and support personnel.
 
For more information, contact NRL Corporate Communications at (202) 480-3746 or nrlpao@us.navy.mil.