Optics is a broad subject that has been studied and renovated over a long period of time. The following is a quick list of the different branches, theories and studies of optics. This list does not cover all concepts related to Optics by any means, however when discussing a topic related to Optics, it will be important to know which type of Optics is being discussed.
Optics
Ray Optics
Geometrical Optics
Wave Optics
Electromagnetic Optics
Quantum Optics
Paraxial Optics
Matrix Optics
Classical Optics
Beam Optics
Gaussian Optics
Fourier Optics
Physical Optics
Polarization Optics
Magneto-Optics
Electro-Optics
Metal Optics
Metamaterial Optics
Transformation Optics
Fiber Optics
Micro-Optics
Nano-Optics
Guided-Wave Optics
Resonator Optics
Photonic-Crystal Optics
Statistical Optics
Photon Optics
Spatial Optics
Acousto-Optics
Semiconductor Optics
Nonlinear Optics
Ultrafast Optics
Atom Optics