Microwaves 84 Microwaves, RF and Optical Engineering Optical engineering 84 Engineering 41 Physics 39 Electronics 28 Optics 25 Materials 19 Optical and Electronic Materials 19 Optical materials 19 Optics, Lasers, Photonics, Optical Devices 17 Communications Engineering, Networks 15 Electrical engineering 15 Optics, Optoelectronics, Plasmonics and Optical Devices 15 Optoelectronics 15 Plasmons (Physics) 15 Laser Technology, Photonics 13 Lasers 13 Photonics 13 Electrodynamics 12 Optics and Electrodynamics 12 Electronic circuits 10 Classical Electrodynamics 9 Electronics and Microelectronics, Instrumentation 9 Microelectronics 9 Semiconductors 9 Quantum Optics 7 Quantum optics 7 Spectrum analysis 7 Signal, Image and Speech Processing 6