Related by context. Frequent words. (Click for all words.) 57 plasmon 53 stimulated emission 52 surface plasmons 50 rubidium atoms 50 nanobubbles 50 photosphere 48 Photons 48 laser pulse 48 manganese oxide 48 optical biosensors 48 Gamma rays 48 aerosol particles 48 fluoresce 48 microwave radiation 47 picoseconds 47 hydroxyl radicals 47 photodetector 47 hydrogen ions 47 infrared radiation 46 ultraviolet wavelengths 46 photons 46 Ultraviolet light 46 excitons 46 ultraviolet UV light 46 exosphere 46 noble gases 46 Quantum dots 46 soundwaves 46 visible wavelengths 46 electrically conducting 45 elemental composition 45 attosecond 45 electromagnetic waves 45 terahertz radiation 45 solar corona 45 Emitting 45 ionized gas 44 trillionths 44 Hawking radiation 44 aldehydes 44 Nitrogen oxides 44 Ultraviolet radiation 44 titania 44 magnetars 44 molecule 44 laser pulses 44 Burning fossil fuels 44 alpha particles 44 reactant 44 Solar flares 44 quanta 44 emitted 43 X ray emission 43 converts sunlight 43 particles emitted 43 shorter wavelengths 43 luminescence 43 ionised 43 heliosheath 43 Hydrogen sulfide 43 giant magnetoresistance 43 ZnO 43 infrared rays 43 fluoresces 43 spectral signatures 43 photometer 43 aliveness 43 Gamma ray bursts 43 vibrational 43 excitations 43 radiations 42 fluorescing 42 frequency comb 42 ultrasonic waves 42 subatomic particle 42 electromagnetic 42 inorganic compounds 42 ultraviolet light 42 magnetic fields 42 active galactic nuclei 42 adsorbed 42 decoherence 42 potent greenhouse gas 42 micron sized 42 synthesized 42 femtoseconds 42 ionisation 41 furan 41 muon 41 Pulsing 41 magnetosphere 41 submicroscopic 41 amplitudes 41 gamma ray burst 41 magnetic pulses 41 harmful ultraviolet radiation 41 billionths 41 gamma rays 41 meteoroids 41 buckyball 41 photon