Related by context. Frequent words. (Click for all words.) 64 ionizing 60 ionized 58 photoelectric 58 ions 58 electrochemical 57 detector 56 Raman spectroscopy 56 excitation 56 spectroscopy 56 fluorescence 56 adsorption 55 particle 54 refractive index 54 electron beam 54 laser pulses 54 detectors 53 rubidium 53 phosphors 53 laser pulse 53 electromagnetic 53 electron 53 magnetic fields 53 UV light 53 mass spectrometer 53 conductivity 53 magnetization 52 ferromagnetic 52 cosmic ray 52 combustion 52 hydrogen atoms 52 thermal conductivity 52 photon 51 electrophoresis 51 nanocrystals 51 atoms 51 electrons 51 superfluid 51 gamma rays 51 photodiode 50 spectroscopic 50 electron mobility 50 oxidant 50 THz 50 neutrino 50 ionic 50 femtosecond 50 particles 50 reactants 50 fluxes 50 ion beam 50 neutron 50 radioactive decay 50 ultraviolet light 50 mass spectrometers 50 infrared IR 50 photons 50 conductance 50 electrostatic 50 infrared radiation 49 corona 49 ion 49 neutrons 49 quantum dot 49 water vapor 49 proton 49 Spectroscopy 49 waveguide 49 quantum dots 49 diode 49 aerosol 49 silicates 49 ejecta 49 superconductivity 49 deuterium 49 xenon 49 resonators 49 convection 49 microscale 49 UV curing 49 resonant frequency 49 resonator 49 aerosols 48 vibrational 48 organic molecules 48 dioxide 48 HEPA 48 nanocrystal 48 femtosecond laser 48 positrons 48 cosmic rays 48 oxidation 48 dielectric 48 gases 48 conductive 48 gravitational waves 48 spectra 48 fluorescence microscopy 48 qPCR 48 inductance 48 metal ions 48 carbon monoxide CO