Related by context. Frequent words. (Click for all words.) 58 vibrational 56 resonant frequency 55 electron density 55 electron spins 55 nanosized 55 crystal lattice 54 isotope ratios 54 analyte 54 excitations 54 orbitals 53 silicon atoms 53 reactant 53 Gamma rays 53 wavelike 52 amplitudes 52 nuclei 52 absorbance 52 intensities 52 oxygen atom 52 isotropic 51 anisotropic 51 sorption 51 magnetic flux 51 plasmon 51 nanobubbles 51 conformations 51 picoseconds 51 phonon 50 anisotropy 50 pulsations 50 compressibility 50 chromophore 50 diffraction pattern 50 magnetization 50 Ultraviolet light 50 nonlinearity 50 morphologies 50 nitrogen atoms 50 reactants 50 osmium 50 porphyrin 50 ultrasonic waves 50 alkanes 50 microstructures 50 nanomechanical 49 conductance 49 thermally stable 49 microscale 49 curvatures 49 dopant 49 geometrical shapes 49 tuning forks 49 Cepheids 49 excitation 49 Fig. 1A 49 cm -1 49 GPa 49 metastable 49 particle sizes 49 ultraviolet wavelengths 49 dipoles 49 micrometre 49 dispersive 49 tetrahedral 49 negative refraction 49 superposition 49 hydrogen ions 49 oscillatory 49 laser pulse 48 precisely calibrated 48 adsorb 48 atoms 48 exciton 48 van der Waals 48 reactivity 48 adsorbed 48 chirality 48 dopants 48 abundances 48 interfacial 48 aragonite 48 decoherence 48 Supplementary Fig 48 keV 48 atomic nucleus 48 dye molecules 48 permittivity 48 spectral signature 47 ions 47 oscillation 47 titania 47 impedances 47 electrical conductivity 47 elastically 47 fluence 47 quanta 47 oxygen atoms 47 picosecond 47 SiO 2 47 sinusoidal 47 crystalline structure