Director 
Center for Materials Research
Distinguished Professor
Mechanical and Aerospace Engineering

Research interests include, but are not limited to; (1) Computational Modeling and Simulation with an emphasis on multi-scale, multi-physics applications using the Finite element methods, Boundary element methods, Molecular dynamics, Cellular automata, Lattice Boltzmann method, etc.; (2) Mechanics of Materials and Structures: fracture, failure, fatigue, transient loading, strain rate effect, various composite materials; (3) Nanomaterials: integrating carbon nanotubes and other nanoparticles into composites; (4) Multiphysics Problems such as fluid-structure interaction, underwater explosion.

Professor
Physics

Research interests: Metamterial-based MEMS sensors; Photonics sensors; MEMS acoustic sensors; MEMS micro actuators, heaters and energy harvesters; and Terahertz Imaging.

Teaching Interests: Optics, Photonics, LASERs, Electronics, MEMS, Solid State Physics, Sensors.

Associate Professor
Mechanical and Aerospace Engineering

Research interests include: the application of composite coatings via cold gas dynamic spray; development of high-temperature ferroelectric ceramics; exploration of low-temperature fabrication of ceramics like silicon nitride; investigation of the interactions between atmospheric particulates and ultra-high-temperature ceramics; and, electron microscopy.  

Associate Professor
Physics 

Professor Clark holds a PhD in Physics from Duke University, where he studied impacts into granular materials. Before coming to NPS, he was a postdoctoral associate at Yale University, working with Profs. Corey O’Hern and Nicholas Ouellette on the physics of the onset of sediment transport by an overlying fluid flow. Prof. Clark’s research group uses a combination of simulations, theory, and laboratory experiments to study granular flows, the acoustic properties of granular materials, and complex or structured fluids.

Research Interests: Weapons and survivability

Professor
Physics

Prof. Grbovic has wide experience in MEMS device design and simulation as well as photolithography and microfabrication processes. Dr. Grbovic’s research interests are in micro-electromechanical systems (MEMS) for sensing and energy harvesting applications.

His recent research focuses on creating focal plane arrays of bi-material MEMS devices for infrared and terahertz imaging using absorbing metamaterials. He is also working on microwave metamaterials, MEMS energy harvesting devices, and micro-ion thrusters using carbon nanotubes. His work has been published in Applied Physics Letters, Journal of Applied Physics, Optics Express, and other journals. He is an author of a chapter in the Encyclopedia of Nanoscience and Nanotechnology.

Research Interests: Explosives, materials, weapons, condensed matter physics

Teaching Interests: Weapons

Research Interests: Micro-fabrication, nanotechnology, and microfluidics for novel materials, biochips, biosensing, nuclear safety and forensics; novel weapons systems

Teaching Interests: Electromagnetism, mechanics, microfluidics, microfabrication, optics, fluorescence microscopy, nanotechnology

Research Interests: 

• Radiation effects on hardened, Mil. Spec., devices and design of radiation tolerant ASIC
• Gallium Arsenide (GaAs) and BiCMOS VLSI Design
• Analog circuit design: high speed, high accuracy op amps and applications in A/D converters and digitally controlled programmable active filters
• Signal processing: Mixed Mode VLSI design and switched capacitor filters
• Radiation and Space effects on Photovoltaic devices, Multi-junction, Gallium Arsenide (GaAs) and Indium Phosphide (InP) solar cells, and Spacecraft power system design
• Minority Carrier and Laser Annealing of GaAs and InP Solar Cells, Advanced Solar cell design, Solar Powered UAS's
• Digital circuit design and microprocessor applications

Todd Weatherford is a Professor in the ECE department and is the director of the NPS Center for Radiation Hardened Electronics. He has held positions at RCA labs (1981-85), NCSU (1986-1989) and NRL (1990-1995). Prof. Weatherford in previous collaboration with UCB and NRL (1994-present) has successfully led programs to study and harden II-V technologies. He has advised over 75 graduate students, 2 patents and published over 65 referred publications in radiation effects, semiconductor modeling and device reliability. He is a member of the lEEE Reliability Society, IEEE Electron Device and IEEE Nuclear Science Society.

CMR Staff

Dr. Chanman Park - MAE Materials Engineer