Classical Electrodynamics 20 Electrodynamics Magnetism Microwaves, RF Engineering and Optical Communications 6 Optical Materials 6 Optical materials 6 Telecommunication 6 Condensed Matter Physics 4 Condensed matter 4 Electronics 3 Electronics and Microelectronics, Instrumentation 3 Engineering 3 Laser 3 Lasers 3 Nanotechnology 3 Technology and Engineering 3 Classical and Quantum Gravity 2 Electrical and Electronic Engineering 2 Electrical engineering 2 Gravitation 2 Mechanical Engineering 2 Mechanical engineering 2 Quantum Physics 2 Quantum physics 2 Spintronics 2 Accelerator Physics 1 Astrophysics 1 Classical Mechanics 1 Classical and Continuum Physics 1 Elementary Particles, Quantum Field Theory 1