Nanoscale ferroelectric multilayers, microelectromechanical devices for optical applications, ferroelectrics, dielectrics, nonlinear optical materials, ferroelectrics for integrated optics, chemcial vapor deposition, nonlinear
optical properties, domain walls in ferroelectrics, coupling of electrical, optical & elastic props to
structure and defects in ferroelectr, Ginzburg-Landau
phenomenological theory and simulation, design, fabrication and testing of integrated optical and nonlinear optical devices