QC Physics 235 TK Electrical engineering. Electronics Nuclear engineering 198 human 148 Humans 105 Optical properties 101 Quantum optics 95 article 95 Article 91 controlled study 71 Refractive index 62 Q Science (General) 61 TJ Mechanical engineering and machinery 61 procedures 60 female 56 male 55 Photons 54 Optical- 51 Optical radar 49 Infrared devices 48 Performance 48 optical coherence tomography 48 adult 47 Scanning electron microscopy 46 Energy gap 39 Optical fibers 38 nonhuman 38 Deep learning 37 diagnostic imaging 36 Fiber optic sensors 35 TA Engineering (General). Civil engineering (General) 35