People

Posligua

Jonatan Posligua

Title/Position
Graduate Teaching Assistant
Jonatan is a first-year physics graduate student from Guayaquil, Ecuador. He came to the University of Iowa in 2017 to undertake his undergraduate studies and graduated with a Bachelor in Sciences in Astronomy and Physics in May, 2021. His research interests include gravitation, cosmology, mathematical physics, particle physics and quantum field theory. Outside of physics, his hobbies include sports, playing music, cooking and traveling.
Powers, Brendan

Brendan Powers

Title/Position
Graduate Teaching Assistant
pradhan, mohit

Mohit Pradhan

Title/Position
Graduate Teaching Assistant
Carol A. Preston

Carol A. Preston

Title/Position
Senior Accountant
Carol has been in the Department of Physics and Astronomy for the past 15 years, working primarily with the Craig Kletzing and David Miles research groups. Her work includes contract budget proposal preparation, monthly financial reporting, and financial projections and analysis. She has worked on the NASA sponsored Van Allen Probes (RBSP-EMFISIS), MMS, TRICE II, TRACERS, and MAGIC projects.
John Prineas

John P. Prineas, Ph.D.

Title/Position
Director of Research Operations
Professor
John is an experimentalist whose research is focused on properties of semiconductor materials using nanostructuring to achieve unique optical and electrical characteristics and to advance state-of-the-art applications such as sensing (environmental, defense) and quantum information. He is the departmental Director of Research Operations, received the 2022 Innovator of the Year Award, and is a member of the Iowa Chapter of the National Academy of Inventors. He recently developed new graduate courses in thin film materials and microfabrication and co-developed a course on quantum optics and nanophotonics.
Craig Pryor

Craig E. Pryor, Ph.D.

Title/Position
Associate Professor
Craig Pryor is an Associate Professor in the Physics and Astronomy Department at the University of Iowa. His research interests include theoretical condensed matter.
Tharnier OPuel

Tharnier Puel De Oliveira, Ph.D.

Title/Position
Postdoctoral Research Fellow/Scholar
Dr. Tharnier O. Puel's interests are in Theoretical Solid State Physics. He studied low-temperature physics in the subject of topological properties of matter. In the last years, he contributed to advances in non-equilibrium spin systems at zero temperature. Currently, he started his studies in optical transduction using cavities QED, at the University of Iowa.
Quaid, Salvatore

Salvatore Quaid

Title/Position
Graduate Teaching Assistant
Graduate Student Mentor
Caroline Roberts

Caroline Anna Roberts, Ph.D.

Title/Position
Graduate Mentor Program (GradMAP) Coordinator
Instructional Services Specialist
Caroline received her BS in Physics from Sewanee: The University of the South and her MS in Physics and PhD in Astronomy from Georgia State University. In the University of Iowa Department of Physics and Astronomy she is the Astronomy Laboratory Coordinator and Van Allen Observatories Manager, supervising the experience of undergraduate students taking Astronomy lab classes in the department and overseeing the operation of the department’s 17- and 20-inch telescopes used for labs, research, and outreach. She is also a co-coordinator of the department’s “Hawkeyes in Space” outreach program and the program advisor for GradMAP, the department graduate student peer-mentoring group.
Vincent Rodgers

Vincent G.J. Rodgers, Ph.D.

Title/Position
Director of Graduate Studies
Professor
Vincent G. J. Rodgers is Director of Graduate Studies and a Professor in the Physics and Astronomy Department at the University of Iowa. His research interests include theoretical particle physics and string theory.
Marcia Rogers

Marcia Rogers

Title/Position
Research Support Manager
Rhyan Sawyer

Rhyan Sawyer, Ph.D.

Title/Position
Postdoctoral Research Scholar
Ianos Schmidt

Ianos Schmidt

Title/Position
Senior Engineering Associate
Jack Scudder

Jack Scudder, Ph.D.

Title/Position
Professor Emeritus
Jack D. Scudder is a Professor in the Physics and Astronomy Department at the University of Iowa. His research interests include space plasma physics.
Sercan Sen

Sercan Sen

Title/Position
Research Scientist/Engineer
Senseman, Blake

Blake Senseman

Title/Position
Graduate Teaching Assistant
Photo of Andrea Shaevitz

Andrea Shaevitz

Title/Position
Senior Financial Analyst
Sharma

Punit Sharma

Title/Position
Graduate Research Assistant
Punit is working on the High Luminosity upgrade of the Inner Tracker detector of the ATLAS experiment currently stationed at the Brookhaven National Lab. He also works on the exotic analysis based on the 2-Higgs doublet model where the pseudoscalar Higgs decays into the heavy CP even neutral Higgs and a Z boson using the run-2 data from the ATLAS experiment.  Punit got his bachelor's and master's degrees from IIT Kanpur. His master's project was on the quantum entanglement in the holographic conformal field theories.
David Sheets

David Sheets

Title/Position
Principal Engineer
David is an engineer with both electrical / software design and systems engineering experience. He is currently working as the systems engineer for the TRACERS ACE instrument and cognizant for several of the subsystems thereof.
Sapna Shekhar

Sapna Shekhar, Ph.D.

Title/Position
Postdoctoral Research Scholar
HWShen

Han-Wen Shen, Ph.D.

Title/Position
Postdoctoral Research Scholar
Han-Wen is interested in conducting space physics research with satellite and ground-based observations. His current research focuses on exploring the plasma dynamics around the Lunar environment.
Shi

Yueguang Shi, Ph.D.

Title/Position
Postdoctoral Research Scholar
sink

Joe Sink, Ph.D.

Title/Position
Postdoctoral Research Scholar
Joe Sink is working with Dr. Craig Pryor and is interested in modeling the electronic properties of novel Solid-State devices using theoretical models such as Tight-Binding and DFT. His current research is directed towards understanding the unique properties of wurtzite and zinc blende nanowire heterostructures.
Frederick Skiff

Frederick N. Skiff, Ph.D.

Frederick N. Skiff is a Professor in the Physics and Astronomy Department at the University of Iowa. His research interests include laser spectroscopy and plasma physics.
Steven Spangler; professor emeritus of physics and astronomy, University of Iowa

Steven Spangler, Ph.D.

Title/Position
Professor Emeritus
Steven R. Spangler's research interests include radio astronomy, plasma astrophysics, galactic interstellar medium, solar corona and solar wind, and basic plasma physics.
Photo of Kevin Steele

Kevin Steele

Title/Position
Application Programmer/Analyst
Kory Stiffler

Kory Stiffler, Ph.D.

Title/Position
Associate Professor of Instruction
Kory Stiffler is a theoretical physicist with research interests in supersymmetry, black hole physics, cosmology, and string theory. for black hole physics and cosmology research, Kory focuses on Thomas-Whitehead gravity developed by Professor Vincent G. J. Rodgers (University of Iowa). In supersymmetry research, Kory focuses on adinkras: colorful diagrams encoding supersymmetry. To aid in adinkra research for students and colleagues, as owner of the GitHub organization HEPTHools, Kory along with several student members has developed the adinkra.m mathematica package.
Dale Stille

Dale Stille

Title/Position
Instructional Services Specialist
Dale has been with the University and the Department of Physics and Astronomy as the Instructional Resource Specialist for 35 years. He holds a Bachelor of Science in Chemistry from Buena Vista University in Storm Lake Iowa, and a Master’s degree in Chemistry from the University of Iowa. He is a member of the American Association of Physics Teachers (AAPT), American Physical Society (APS), and the Physics Instructional Resource Association (PIRA). He is also a Co-Coordinator of the Departments “Hawk-Eyes on Science”, and “Hawkeyes in Space” outreach programs.
John Sunderland

John Sunderland, Ph.D.

Title/Position
Associate Professor
Director, PET Imaging Center
John J. Sunderland is Professor of Radiology in the Division of Nuclear Medicine at the University of Iowa, and has a secondary appointment in the Department of Physics and Astronomy. He is also Director of the PET Imaging Center and is a Professor of Radiation Oncology. His research interests include medical physics.