Related by context. Frequent words. (Click for all words.) 62 exciton 62 picosecond 62 magnetization 60 attosecond 59 picoseconds 59 electron spin 59 excitons 58 isotropic 58 oxygen atom 58 photonic crystal 57 shorter wavelengths 57 biomolecule 57 femtosecond 57 muon 57 laser pulse 57 ferroelectric 57 dopant 56 positron 56 femtoseconds 56 ferromagnetic 56 excitation 56 superfluid 56 excitations 56 oscillation 56 subatomic particle 56 hydrogen atom 56 magnetic flux 55 Bose Einstein condensate 55 anisotropy 55 nanocrystal 55 electron 55 photodetector 55 atoms 55 laser pulses 55 chirality 55 electron beams 54 amplitudes 54 photons 54 femtosecond laser 54 absorbance 54 filament 54 qubit 54 macroscopic 53 crystal lattice 53 X ray emission 53 neutrons 53 oscillations 53 quantum dot 53 photon 53 magnetic reconnection 53 bandgap 53 atomic nuclei 53 dye molecules 53 z = 53 alpha particles 53 analyte 53 GeV 53 fermions 53 bosons 53 quark gluon plasma 53 neutrino 53 magnetic fields 53 nuclei 53 superposition 52 electrons 52 atomic nucleus 52 electrochemical 52 X ray beam 52 Brownian motion 52 refractive index 52 muons 52 ionization 52 frequency comb 52 optical microscopy 52 molecule 52 hydrogen atoms 52 microlensing 52 dopants 52 terahertz radiation 52 nanocrystals 52 bilayer 52 resonant frequency 52 gravitational wave 52 spatial dimensions 52 proton 51 nanoscopic 51 angular momentum 51 ionized gas 51 millionths 51 nanometer scale 51 superconducting materials 51 interferometry 51 chiral 51 plasmonic 51 plasmons 51 visible wavelengths 51 phonons 51 nanometer sized 51 interferometer 51 transmission electron microscope 51 SWNTs