Related by context. Frequent words. (Click for all words.) 63 terahertz radiation 60 microwave frequencies 60 Millimeter wave 60 visible wavelengths 59 electromagnetic spectrum 58 non ionizing 58 infrared wavelength 58 ultraviolet wavelengths 57 #.# MHz [002] 57 diffracted 56 microwave radiation 56 orthogonal frequency division multiplexing 56 plasmon 56 stimulated emission 55 photodetector 55 soundwaves 55 bandgap 55 shorter wavelengths 54 semiconducting material 54 frequency modulation 54 ultrasonic waves 54 cm -1 54 recombines 54 paramagnetic 54 frequency comb 54 optical modulator 54 dispersive 53 terahertz 53 infrared radiation 53 Ultraviolet light 53 6GHz 53 isotropic 53 diffraction pattern 53 Fourier transform 53 submillimeter 53 electrically conducting 52 nanometers nm 52 UVB radiation 52 superlens 52 analog circuitry 52 tropopause 52 Gamma rays 52 radiowaves 52 gravitational lens 52 nm wavelength 52 microfabricated 52 THz 52 ionised 51 Terahertz 51 dopants 51 electromagnetic waves 51 micrometre 51 wavelengths 51 silicon atoms 51 near infrared NIR 51 gate electrode 51 electron spins 51 indium phosphide 51 crystallinity 51 beam splitter 51 microwatts 51 photosphere 51 nanomechanical 51 fluorophores 51 spectrally 51 interferometry 51 semiconductor nanocrystals 51 indium tin oxide 51 interferometric 51 GHz ISM 51 infrared rays 51 dopant 51 RF tuner 50 Ultraviolet radiation 50 piezoelectric materials 50 resonant frequency 50 spintronic 50 collimated 50 photodiode 50 X ray beam 50 spectral imaging 50 optical wavelengths 50 tomographic 50 milliwatt 50 nonlinearity 50 surface plasmons 50 #.#GHz [001] 50 laser pulse 50 infrared 50 Raman spectroscopy 49 Hawking radiation 49 radiative 49 photometer 49 attoseconds 49 photonic crystal 49 directivity 49 electrochemical reaction 49 GaN HEMT 49 shorter wavelength 49 picoseconds 49 alpha particle