- Optics, Lasers, Photonics, Optical Devices 36
- Nuclear Physics, Heavy Ions, Hadrons 13
- Strongly Correlated Systems, Superconductivity 12
- Classical Electrodynamics 11
- Quantum Optics 11
- Astronomy, Observations and Techniques 8
- Thermodynamics 8
- Astrophysics and Astroparticles 7
- Atomic, Molecular, Optical and Plasma Physics 7
- Condensed Matter Physics 7
- Elementary Particles, Quantum Field Theory 7
- Physical Chemistry 7
- Physics, general 7
- Atoms and Molecules in Strong Fields, Laser Matter Interaction 6
- Characterization and Evaluation of Materials 6
- Mathematical and Computational Engineering 6
- Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics) 6
- Complex Systems 5
- Complexity 5
- Engineering Design 5