David Gidley

Professor of Physics, College of Literature, Science and the Arts
(734) 936-1134

Professor Gidley works with academic and industrial partners on wide-ranging applications in energy research (Metal-Organic-Frameworks and zeolites for gas storage and separation), microelectronic devices (low-K interlayer dielectrics and barriers), and fundamental polymer physics (surface, interface, and thin film properties of glassy polymers and composites thereof). His lab has a focused variable-energy beam of positrons for non-destructive depth-profiling of surfaces and thin films as well as several positron lifetime spectrometers for analyzing bulk samples in a variety of environments.

LSA Profile

Positron Research

Atomic, Molecular, Optical Physics

Research Interests: 
Professor Gidley’s research focuses on precision measurements of the singlet and triplet annihilation decay rates of the particle-antiparticle system called positronium as tests of quantum electrodynamics. Comparison with calculations of these decay rates comprises a unique test of quantum electrodynamics. He has searched for exotic positronium decay modes as tests of fundamental conservation laws and discrete symmetries. His positron studies of metal surfaces and thin films include surface defects, film growth, and the generation and polarimetry of spin polarized low energy positron beams to probe surface magnetism.