Related by context. Frequent words. (Click for all words.) 68 isotropic 65 photonic crystal 65 anisotropy 64 GPa 64 anisotropic 64 magnetization 64 exciton 64 picosecond 63 conductance 63 interferometry 63 amplitudes 62 absorbance 62 femtosecond 62 MeV 62 spectra 61 Terahertz 61 bandgap 61 diffraction 61 Raman spectroscopy 61 excitons 61 ferromagnetic 61 terahertz 60 excitations 60 photodetector 60 laser pulse 60 frequency comb 60 #μm [001] 60 shorter wavelengths 59 magnetic reconnection 59 spectroscopy 59 GeV 59 interferometer 59 ferroelectric 59 X ray diffraction 59 THz 59 Supplementary Fig 59 dielectric constant 59 picoseconds 59 nm wavelength 59 microwave frequencies 59 X ray emission 59 spectroscopic 59 confocal microscopy 59 gravitational lensing 59 waveguides 59 refractive index 59 plasmonic 58 laser pulses 58 bilayer 58 analyte 58 magnetic flux 58 #.#nm [001] 58 plasmons 58 excitation 58 electron 58 photon 58 electron spin 58 microlensing 58 InGaAs 58 submicron 58 terahertz radiation 58 femtoseconds 58 quantum dot 58 electron mobility 58 μm 57 transmission electron microscopy 57 irradiance 57 dimer 57 angstroms 57 infrared spectroscopy 57 ZnO 57 optical microscopy 57 FRET 57 Tunable 57 scanning tunneling microscope 57 dopant 57 photons 57 #μm [002] 57 polycrystalline 57 visible wavelengths 57 muon 57 SiO2 57 SWNTs 56 transmission electron microscope 56 z = 56 micrometer 56 coronal 56 gel electrophoresis 56 superconducting 56 phonons 56 supernova remnant 56 antiprotons 56 electron beam 56 solar corona 56 auroral 56 Pulsed 56 beamline 56 NICMOS 56 radiative 56 quantum mechanical 56 Brownian motion