Photonics researchers focus on the applications of the particle properties of light, optoelectronics has to do with the study and application of effects related to the interaction of light and electronic signals.<br><br>Graduate study in the field offers the opportunity to achieve proficiency in physics, mathematics, and applied science. Applied physics is particularly suitable for students preparing for a scientific career in an area of applied science based on principles and techniques of physics.A student may choose for specialization and thesis or dissertation research any subject compatible with an approach based on the application of principles of physics and mathematics. Current areas of advanced study and research include applied theoretical physics, biophysics, chemical physics, physics of fluids, nuclear and reactor physics, optics, laser physics, plasma physics, solid-state physics, nano-science, and space physics.The Ph.D. program in the graduate field of Applied Physics (AP) is a research-oriented doctoral program tailored to individual interests. It combines a core physics curriculum with research and study in one of several areas that deal either with the application of physics to a technical discipline or with the interface between physics and another area of science. After two semesters of graduate study, students in the Ph.D. program take a written qualifying examination covering the core subjects. This exam is in addition to those required by the Graduate School.