Dr. David Shrekenhamer is a senior staff scientist at the Johns Hopkins University Applied Physics Laboratory (JHU/APL). Dr. Shrekenhamer received his B.S. in Physics from University of California San Diego in 2006. He also received his Ph.D. in Physics from Boston College in 2013. After receiving his Ph.D., he joined the research staff at JHU/APL where he has been actively researching novel methods of manipulating electromagnetic waves. With expertise developing concepts that utilize metamaterials for use across the electromagnetic spectrum, he specializes in leading interdisciplinary teams designing custom electromagnetic solutions for a range of complex problem spaces (such as communications, signature science, and sensing and imaging). While his work largely focuses on electromagnetic-based problems, he also has substantial expertise in developing novel materials (such as optical phase-change materials), fabrication techniques (such as nanofabrication and incorporation within novel substrates), electronic circuitry, and signal processing, and in incorporating and accounting for multi-physics effects such as electromagnetic heating, structural heating, and more exotic behavior like nonlinear effects, chirality, and bi-anisotropy. Additional areas of expertise include antennas and propagation, counter-directed energy weapons technology, infrared technologies, materials modeling and simulation, and metasurfaces.