Our graduate students go on to lead interesting and rewarding careers across the educational and private sectors. Read a few of our alumni stories below and reach out if you’d like your story added to this page.
Mario Affatigato
Fran Allison and Francis Halpin Professor of Physics and Chair, Coe College Fellow, American Ceramic Society
Affatigato received the American Physical Society Prize for Research in an Undergraduate Institution in 2013 for “high- impact research on optical and structural properties of glasses, stewardship of professional societies and journals, and extensive international collaborations, melded with energetic, compassionate supervision of undergraduate research participants.”
Alan C. Calder
Professor, Stony Brook University
Dissertation: Multidimensional Simulations of Core Collapse Supernovae using Multigroup Neutrino Transport
Adviser: Sait Umar
Brandon Cook
Group Lead, Programming Environments and Models group at NERSC
Dissertation: Ab initio methods for quantum transport in nanomaterials
Adviser: K. Varga
Cook is the group lead for the Programming Environment and Models group at NERSC. He works on understanding and analyzing performance and productivity on a system, workflow and application level, developing future benchmark suites, analyzing future architectures, developing tools to help NERSC users/staff be more productive and exploring future programming language features and programming models.
Sarah Crews
Technical Staff Scientist, MIT Lincoln Laboratories
Dissertation: Mechanics of Drosophila embryogenesis and heat-shock induced developmental defects
Adviser: M. Shane Hutson
“Graduate studies in the Department of Physics and Astronomy at Vanderbilt taught me to think at a system level to scope and define a problem, and then pull together interdisciplinary ideas and techniques to find a solution. The ability to see the big picture and identify where to dive deep for an innovative technical solution has been invaluable for my career.”
David Dean
Special Advisor to the Director, Director of the Strategic Planning & Partnerships Office, Jefferson Lab
David previously was the director of the Quantum Science Center of ORNL, and Associate Laboratory Director for Physical Sciences of ORNL.
Joe Driscoll
Principal AI and Embedded Engineer at AutonomouStuff
Dissertation: Electron field emission in nanostructures: A first-principles study
Adviser: K. Varga
Mehmet Cem Guclu
Professor, Istanbul Technical University, Turkey
Dissertation: Monte Carlo Calculations of Lepton-Pair Production in Relativistic Heavy-Ion Collisions.
Adviser: Sait Umar
Jordan Hachtel
R&D Associate, Oak Ridge National Laboratory, Oak Ridge, TN
Dissertation: The Nanoscale Optical Properties of Complex Nanostructures
Adviser: Sokrates T. Pantelides
Jordan had a unique and very rewarding experience for his doctoral research. In principle, he pursued a joint theory-experiment program. After initial training in theoretical/computational research while at Vanderbilt, he moved to Oak Ridge National Laboratory (ORNL) where at the time, as distinguished visiting scientist, he maintained a group of theory post-docs embedded in the electron-microscopy group led by award-winning microscopist Stephen Pennycook, who was among the pioneers of scanning transmission electron microscopy.
Jordan continued some theoretical research, but he quickly became an avid microscopist, being mentored in experimental work by a team of expert ORNL microscopists and by Vanderbilt Professor Richard Haglund on optical aspects of STEM-based cathodoluminescence and having access to superb, world-class facilities. Jordan’s Ph.D. thesis received the Springer Publishing Outstanding Ph.D. Thesis Award in 2017. He was hired as a post-doc in the ORNL group and then as a staff scientist. He has since received several microscopy awards.
Ryan Hatcher
CEO and Founder, Phoenix Semiconductor Corporation
Thesis title: “Dynamic response of electronic systems: an implementation and application of time-dependent density-functional-theory”
Adviser: Sokrates T. Pantelides
Ryan studied physics as an undergraduate at Wake Forest University but had a strong bend for computational work. He got a master’s degree in computer science at Vanderbilt and then wanted to pursue a Ph.D. degree in computational physics. He had an interest in expanding his research in time-dependent density functional theory and got excited about writing a new computer code from scratch. He did, working closely with then-post-doc Alan Tackett. His thesis research addressed a long-standing problem, the calculation of the so-called stopping power for energetic ions injected in materials, and the results were published in the premier journal Physical Review Letters. He also had an opportunity to work on radiation-induced displacement damage in semiconductor devices with a post-doc, which enriched his physics knowledge.
Upon graduation, he quickly secured a job doing computational materials research at Lockheed-Martin, advanced to the position of senior research scientist, joined Samsung Electronics in Austin, Texas as Principal Scientist, returned to Lockheed-Martin as principal scientist. He is now the CEO and founder of Phoenix Semiconductor Corporation.
Daniel Kidd
Senior Director of Research Data Science at Spring Venture Group
Dissertation: Accelerated Time Propagation in Time-Dependent Density Functional Theory
Adviser: K. Varga
Ken Lewis
Board certified (DABR) Diagnostic & Nuclear Medical Physicist
Board certified (CHP) Health Physicist
Assistant Professor in the Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center
Dissertation: Coherent scatter computed tomography (CSCT) – a Monte Carlo simulation study
As a medical physicist, his focus is on clinical image quality, patient dosimetry, imaging protocol development, and radiation safety. As an educator, he participates in teaching courses for both the VUSM Doctorate of Medical Physics program and the radiology residency training program.
Junhao Lin
Associate Professor, Southern University of Science and Technology, Shenzhen, Guangdong, PR China
Dissertation: Revealing structure-property correlations in 2D layered materials using synergistic combination of electron microscopy and atomic-scale calculations
Adviser: Sokrates T. Pantelides
“I spent nearly six years at Vanderbilt to purse my Ph.D. degree. My adviser Sok is knowledgeable and professional in the field of condensed matter physics. He gave me rich ideas whenever we discussed and led me to the right track of independent research. The faculty members in the physics department are very helpful and friendly to each student and offer help to all students whenever they need it. The Vanderbilt campus is wonderful, and I will always be grateful for having my graduate study at Vanderbilt.”
Holley Lynch
Associate Professor of Physics, Stetson University
Dissertation: Investigating Cell and Tissue Mechanics During Drosophila Embryogenesis Using Laser Microsurgery
Adviser: M. Shane Hutson
“My experiences at Vanderbilt prepared me for my current position, which emphasizes both teaching and involving undergraduates in research. I entered Vanderbilt knowing I wanted to be a teacher-scholar and the resources both in the physics department and at the Center for Teaching helped me get there.”
Szabolcs Márka
Walter O. LeCroy, Jr. Professor of Physics at Columbia University
Member, LIGO Scientific Collaboration
His long-term astrophysics research is focused on the effort to directly detect gravitational waves of cosmic origin, which will allow us to study cosmic processes and objects unreachable through conventional methods based on electromagnetic observations. His present interest is in multimessenger astrophysics and in enhancing the astrophysical reach and reliability of the Laser Interferometer Gravitational-wave Observatory (LIGO). His recent interest in biooptics research is focused on insect neural systems, their connections to the insect’s genetic makeup, sensory signal processing pathways, and locomotion.
Timothy Pennycook
Assistant Professor, University of Antwerp (Belgium)
Dissertation: Understanding Materials through Scanning Transmission Electron Microscopy & Density Functional Theory
Advisor: Sokrates T. Pantelides
Professor Pennycook develops scanning transmission electron microscopy for material science.
David Pigg
Research Scientist, Siemens Healthineers
Dissertation: “Coupled-Cluster Solution of the Time-Dependent Schrodinger Equation for Atomic Nuclei”
Adviser: Sait Umar
Ricardo Ruiz
Fellow, American Physical Society, 2016. For outstanding contributions to the fundamental understanding of directed self-assembly of block copolymer films
Arthur Russakoff
Research Engineer at I. M. Systems Group Inc. (IMSG)
Dissertation: The Interaction of Small Molecules and Short Intense Laser Fields
Adviser: K. Varga
Jorge Salas
Consultant & Developer, Vanderbilt University
Dissertation: Stochastic variational approach to interaction of atoms and strong external fields
Adviser: K. Varga
Jack Wells
Director, Higher Education and Research Computing, Nvidia
Before joining Nvidia, Jack was the Director of Science, Oak Ridge Leadership Computing Facility.