- Optics, Lasers, Photonics, Optical Devices 27
- Quantum Optics 24
- Engineering, general 23
- Physical Chemistry 23
- Physics, general 23
- Electrical Engineering 2
- Acoustics 1
- Applications of Mathematics 1
- Astronomy, Observations and Techniques 1
- Classical Electrodynamics 1
- Complexity 1
- Neurobiology 1
- Quantum Physics 1