Professor Neville C. Luhmann, Jr.
Professor Luhmann’s Life and Work
Professor Neville C. Luhmann Jr. was a globally recognized pioneer in plasma physics, vacuum electronics, and millimeter-wave imaging technology. Over a distinguished career spanning six decades, he made foundational contributions to fusion plasma diagnostics, high-frequency electronics, and advanced electromagnetic technologies for scientific, defense, medical, and communications applications, helping shape fields that continue to influence scientific discovery today. After earning his Ph.D. in Physics from the University of Maryland, College Park, in 1972 and completing postdoctoral research at the Princeton Plasma Physics Laboratory, he spent two decades at UCLA as a professor in the Department of Electrical Engineering. There, he founded and directed the Center for High Frequency Electronics and led the Air Force-funded Advanced Thermionics Research Initiative (ATRI).
Professor Luhmann joined UC Davis in 1993 and, in 2003, was appointed Distinguished Professor—one of the university’s highest academic honors. At UC Davis, he continued to expand the frontiers of millimeter-wave and plasma diagnostic research while serving in major academic and research leadership roles, including Chair of the Department of Applied Science and Co-Director of the Davis Millimeter Wave Research Center. His leadership extended across numerous large-scale research initiatives, including ATRI 2000, the DoD Joint Services Electronics Program in Millimeter Wave Electronics, multiple DoD Multidisciplinary University Research Initiative consortia in high-power microwave systems, innovative microwave vacuum electronics, and nanophysics of electron emission, as well as the NIH/NCI Unconventional Innovations in Cancer Detection and Treatment Program.
His international reputation was reflected not only in his scientific output, but also in his service to the broader research community, including his role as an ITER Scientist Fellow, membership on advisory and academic committees for major international research institutions, and service on the Advisory Group on Electron Devices for the Office of the Secretary of Defense. A Fellow of the American Physical Society and a Life Fellow of the Institute of Electrical and Electronics Engineers, Professor Luhmann authored approximately 420 journal articles and 18 books. His research spanned magnetic fusion plasma energy, millimeter-wave sources for electron paramagnetic resonance spectroscopy, imaging and visualization, high-speed communications, and advanced vacuum electronics.
His extraordinary contributions were recognized with many of the most prestigious honors in his field, including the Robert L. Woods Award for Excellence in Vacuum Electronics, the Kenneth J. Button Prize for outstanding contributions to the science of the electromagnetic spectrum, the IEEE Plasma Science and Applications Committee Award for outstanding contributions to plasma science, and the IEEE John R. Pierce Award for Excellence in Vacuum Electronics, honoring his contributions and leadership as a scientist, engineer, and educator.
The Mentor We Knew
Yet those who knew Professor Luhmann often speak first not of his achievements, but of his mentorship. He received UC Davis’s Distinguished Graduate and Postdoctoral Mentoring Award and the Consortium for Women and Research Outstanding Mentor Award, reflecting a lifelong commitment to developing future generations of scientists and engineers. For him, scientific excellence and mentorship were inseparable.
To the more than one hundred Ph.D. students he guided, Professor Luhmann embodied a rare combination of uncompromising standards and unwavering support. He was the mentor who would spend late evenings carefully reviewing a manuscript to catch a single missing subscript, while never losing faith in a student’s ability to succeed. Long after graduation, he remained a trusted advisor and steadfast champion, celebrating each milestone with the same energetic stride and warm smile that were familiar sights across campus.
He believed that rigorous science and a joyful life belonged together. Whether leading camping trips to Mammoth Lakes, hosting research group barbecues, or sharing laughter in the laboratory, he fostered a sense of community wherever he went. He lived by a simple philosophy: hold no grudges, look for opportunities to help others, remain steady in difficult moments, and never hesitate to laugh at yourself.
The Memorial Bench
Following his passing on September 5, 2025, more than forty of Professor Luhmann’s former students came together from across generations and around the world to dedicate this memorial bench outside Kemper Hall. It is a small expression of our gratitude for a mentor who changed so many lives.
We chose a bench because it represents what Professor Luhmann was to so many of us: a welcoming place to pause and reflect, and a steady source of guidance in a complex world. Like the countless conversations he shared with students and colleagues throughout his career, we hope this bench offers a place for reflection, learning, connection, and inspiration.
When you sit here, we hope you feel the warmth of his memory and find inspiration in the generosity, curiosity, and encouragement he shared so freely. May this bench serve as a reminder to support others, pursue excellence with humility, and approach life with the same optimism and kindness that defined him.
This memorial reflects only a small part of Professor Luhmann’s extraordinary life and the countless lives he touched. Those who wish to learn more about his remarkable journey, or to read and share memories from family, friends, colleagues, and former students, are invited to visit his memorial page:
Every memory shared helps preserve the legacy of a scientist, mentor, colleague, and friend whose kindness, generosity, and unwavering belief in others continue to inspire us.
We are deeply saddened by his loss, yet immeasurably grateful for the privilege of having known him.
Forever missed. Forever loved.
