Related by context. Frequent words. (Click for all words.) 58 photonic crystal 57 toroidal 57 silicon atoms 57 hemispherical 56 nanosized 56 nanoscopic 56 tetrahedral 56 anisotropy 56 spherical 55 collimator 55 isotropic 55 nanocrystalline 55 dopant 54 crystal lattice 54 electron density 53 silicon nitride 53 nanometer sized 53 surface roughness 53 diffractive 53 exciton 53 bilayer 53 #μm [002] 53 torus 52 Fig. 1A 52 resonator 52 photoluminescence 52 microstructures 52 microscale 52 crystalline structure 52 planar 52 electrophoretic 52 porphyrin 52 silicon substrate 52 refractive index 52 electron spins 52 dielectric materials 52 laminar 51 photodetector 51 dopants 51 filament 51 SiO 2 51 spherical shape 51 electrically conducting 51 micron thick 51 compressibility 51 nanocrystal 51 hollow tubes 51 ZnO 51 deformable 51 micrometer 51 particle sizes 51 metalized 51 transmissive 51 helical 51 concave 51 polymer matrix 51 cylindrical 51 #um [002] 51 dispersive 50 ultrasonic waves 50 spheroid 50 elemental composition 50 anneal 50 wavefront 50 magnifying lens 50 pentagons 50 spacetime 50 nanofibres 50 curvatures 50 μm 50 nanotube 50 viscoelastic 50 scanning electron microscopy 50 #μm [001] 50 anisotropic 50 radially 50 titanium oxide 50 #.#μm [001] 50 sintered 50 monolayer 50 absorbance 50 nano sized 49 hydroxyapatite 49 electrically conductive 49 polymer coated 49 salt crystals 49 magnetization 49 GPa 49 AlN 49 nanoribbons 49 bandgap 49 chemically inert 49 particle 49 nitrogen atoms 49 microporous 49 polymerized 49 fluoresces 49 filaments 49 convex 49 quartz crystals 49 eyepieces