Related by context. Frequent words. (Click for all words.) 74 terahertz radiation 67 frequency comb 66 electron beams 66 shorter wavelengths 66 THz 65 photonic crystal 65 isotropic 64 bandgap 64 plasmons 64 Terahertz 64 photodetector 64 X ray beam 63 ultrasonic waves 63 Raman spectroscopy 63 photonic crystals 63 excitons 62 terahertz 62 plasmonic 62 visible wavelengths 62 laser pulses 62 photons 61 photon 61 interferometry 61 absorbance 61 infrared radiation 61 waveguides 61 dopant 61 microscale 61 microwave frequencies 61 laser pulse 61 ion beam 61 electromagnetic waves 60 biomolecule 60 metamaterial 60 spectroscopic 60 thermoelectric materials 60 spectroscopy 60 photonic devices 60 dopants 60 femtosecond 60 dye molecules 59 confocal microscopy 59 Metamaterials 59 infrared rays 59 diffraction 59 exciton 59 nanocrystal 59 nanoscopic 59 nanotube 59 magnetic fields 59 wavelengths 59 waveguide 58 photodetectors 58 synchrotron radiation 58 microstructures 58 nanoscale 58 analyte 58 picosecond 58 InGaAs 58 radiative 58 SWNTs 58 alpha particles 58 photodiode 58 optical microscopy 58 electron beam 58 excitation 58 nanospheres 58 quantum dots 58 metamaterials 58 phonons 58 ZnO 58 nanocrystals 58 UV light 58 nanosensors 58 Ultraviolet light 58 wavefront 58 ionization 58 biological molecules 57 magnetic flux 57 Photons 57 diffractive 57 PZT 57 surface roughness 57 gravitational wave 57 transduction 57 anisotropy 57 X ray diffraction 57 nanostructure 57 microchannels 57 gravitational lensing 57 X ray emission 57 gallium nitride 57 quantum dot 57 muons 57 resonant frequency 57 fluorescence 57 fluorescent dyes 57 quantum mechanical 57 refractive index 57 ferromagnetic 57 nanoscale structures