Optics 142 Mathematical optimization 109 Fiber optics 81 Nonlinear optics 81 Optical communications 81 Physics 70 Plant Biotechnology 59 Light & paraphotic phenomena (Optics); Physics 58 Lasers 52 Photonics 51 Dissertations, Academic (Ph.D) 42 Agronomy 40 Mathematics 37 Quantum optics 37 Biotechnology 34 Thin films 34 Operations research 33 Optoelectronics 32 Optical fiber communication 31 Thesis (Ph.D)-Physics 31 Optoelectronic devices 29 Combinatorial optimization 28 Optical instruments 28 Optical fibers 27 Optical properties 27 Nanotechnology 26 Optical materials 26 Light 25 Mathematical models 24 Chemistry 23