Plasma Physics is the study of ionized gases. Plasma is the most common state of known matter in the universe. Our experimenters have seven labs on campus, and instruments on spacecraft, rockets, and the International Space Station. Our research includes experiment, theory, and simulation. Areas include basic science, astronomy, geophysics, and processing plasmas. Graduate students participate in a weekly plasma physics seminar.
We have the largest number of plasma physics faculty members among all physics departments in the U.S. We are ranked among the top ten universities nationwide in plasma physics. Our faculty members have strong international reputations, frequently giving invited talks at international conferences and winning grants from a wide range of funding agencies. Our faculty includes six fellows of the APS and one member of the National Academy of Sciences. Our labs, and our instruments in space, are unique and world class. We offer a wide choice of research problems, which are diversified among the most rapidly growing topics in plasma physics. Students publish highly-cited papers in leading journals, and give talks at major conferences. Plasma physics offers strong job placement opportunities, and our PhD graduates have excellent success in finding the jobs that they most want.
Basic and applied theoretical plasma physics.
- Strongly-coupled plasmas, such as the warm dense matter in inertial confinement fusion
- Theory for low-temperature plasmas including plasma-boundary interaction
- Students carry out a combination of analytic and numerical theory
- Students interact with collaborators at major national labs
Experimental plasma physics; statistical physics; soft condensed matter physics.
- Dusty plasma, strongly-coupled plasma, optical diagnostics of plasmas, waves
- Physics problems are interdisciplinary, combining condensed matter, statistical physics, and plasma physics; experiments involve direct comparisons to theory
- Experiments are performed in our labs. Data from experiments on the International Space Station (ISS) are also analyzed
- Two labs with plasma chambers and optical diagnostics
- Students also interact with group members including a research scientist; other faculty and research scientists; collaborators in other countries
- Students develop skills including design, construction, and operation of: vacuum, electronic, optical, and laser systems; programming in various languages; image analysis
Experimental space plasma physics.
- Experimental studies of planetary radio emissions and plasma waves
- Student analysis of spacecraft data: Voyagers 1 and 2 (now interstellar space); Cassini (in orbit around Saturn); Cluster (consisting of four spacecraft in Earth orbit); Mars Express in orbit around Mars; and Juno (in orbit around Jupiter)
- Supervised over 60 space physics thesis projects; former students now at NASA centers, industry, other universities
- Students also interact with other group members, including research scientists, engineers, and programmers
Experimental space physics.
- Space plasma physics around moons and planets and in the interplanetary medium
- Development of spaceflight instrumentation to make high-resolution measurements of charged particles
- On-campus facilities include a laboratory for spaceflight hardware assembly and calibration
- Students participate in the development of spaceflight instruments, in collaboration with engineers, scientists, and technicians at Iowa and partner institutions
- Students also analyze spacecraft data from the Earth, the Moon, Mars, the Sun and solar wind, and outer planets
- Students gain skills in spaceflight hardware development, programming, and data analysis
Theoretical and computational plasma physics.
- Turbulence in the magnetized plasmas found in laboratories, space and astrophysics
- Analysis of spacecraft data from the turbulent solar wind
- Students develop skills including high-performance computing on the nation's fastest supercomputers, analysis of simulation and observational data, and development of simple analytical models to interpret results
- Students also interact with group members including a postdoc and collaborators around the world
Experimental space physics
- Inner magnetosphere and radiation belts particle dynamics, particularly high-energy electrons and protons
- The physics of the aurora in Earth’s ionosphere
- Relativistic particle effects throughout the magnetosphere in the vicinity of magnetic reconnection
- Solar driving of the near-Earth space environment
- Co-Investigator on NASA’s Van Allen Probes and MMS missions
- Hardware and instrument development focused on the above science questions
Experimental space plasma physics; laboratory plasma physics.
- Experimental measurements of wave electric and magnetic fields in the Earth's Van Allen radiation belts
- Plasma wave and particle processes that occur in the aurora
- Electric field measurements near regions of magnetic reconnection
- Students get hands-on experience with spaceflight hardware
- Laboratory experiments to test theory for Alfvén waves, turbulence, and collision operators
- Experiments are prepared at Iowa and then performed at UCLA's Large Plasma Device (LAPD) user's facility
- On-campus facilities include: two vacuum chambers, an electronics lab, and spaceflight hardware assembly lab
- Students perform both laboratory and rocket experiments and work on data from satellite missions
- Students also interact with other group members including two research scientists, and electronics system engineer, postdocs, as well as scientists at other institutions including those at UCLA
Experimental plasma physics.
- Basic plasma physics problems, including laboratory simulations of space plasma phenomena, dusty plasmas
- Facilities include two lab rooms with three plasma chambers
- Major equipment includes two Q-machines with magnetic field up to 0.5 T; each machine is dedicated to a single graduate student
- Students develop skills including: vacuum, electronics, data acquisition, image analysis, instrument fabrication
- Employment opportunities include industry, government labs and universities
Space plasma physics.
- Signatures of Heat conduction in semi-collisional Astrophysicsal Plasmas
- Developing Transport Theory in the presence of Kurtotic Suprathermal Tails in Finite Knudsen number plasmas
- Kurtosis Formation in semi-collisional Astrophysical Plasmas
- New Models of Solar Corona and Stellar Wind Expansions
- Diagnostics of Magnetic Reconnection in Space Plasmas
- Students develop skills in: writing codes in C, Fortran and IDL, and numberical methods
- Employment opportunities are postdoc positions at universities and national labs
Laser spectroscopy; plasma physics.
- Experimental topics include experiments for plasma waves and instabilities, plasma self-organization and sheaths, and laser-induced fluorescence and wave-absorption diagnostics of plasmas
- Student projects are typically experimental with a significant interaction with theory
- Theoretical topics include plasma kinetic theory including waves and nonlinear fluctuations
- There are two labs at Iowa, including: a 3-meter linear magnetized-plasma device and a large multi-dipole discharge. Both are equipped with single-frequency scanning lasers for high-resolution laser spectroscopy. Some students also participate in collaborations on the Large Plasma Device located at UCLA
- Beyond interactions with group members, students participate in the plasma seminar and interact with Departmental theoretical and experimental plasma, space physics, and astronomy faculty
- Students develop skills including data analysis, high-resolution laser spectroscopy, designing and building apparatus, electronics, computation
- Previous assistants have found employment in academia, national laboratories, and in industry
Radio astronomy; plasma astrophysics; space plasma physics.
- Solar corona, solar wind, interstellar medium
- Students use the Very Large Array (VLA) radio telescope
- Students also encouraged to carry out instrumentation-development projects with the 4.5 meter instructional radio telescope on roof of Van Allen Hall
- Students develop skills in numerical methods, writing code in Python and other languages