Dr. Levush’s research involves coherent radiation generation using electron beams. Early in his career, he focused on developing theories and computational models of the nonlinear interaction of electromagnetic modes in free electron lasers and gyro-devices. In his current research, Dr. Levush is actively involved in developing theoretical models and computational tools for analyzing the operation of vacuum electron devices and in inventing new concepts for high power amplifiers that operate at frequencies ranging from 1 to 1000 GHz.