Related by context. Frequent words. (Click for all words.) 60 amplitudes 59 picosecond 58 femtoseconds 58 laser pulse 57 laser pulses 56 picoseconds 56 nm wavelength 55 photon 55 absorbance 54 MeV 54 dispersive 54 joules 54 wavelength 53 wavelengths 53 pulsed laser 53 pulse width 52 μs 52 micrometres 52 shorter wavelengths 52 Fig. 1A 52 femtosecond 52 GeV 52 electron beams 52 #μm [002] 52 resonant frequency 52 -# ° C [001] 52 dipole 52 pulses 51 sine wave 51 electron density 51 excitation 51 attosecond 51 frequency comb 51 interferometry 51 irradiance 51 milliwatt 51 optical amplifiers 51 milliamps 51 μm 51 msec 51 excitations 51 #GHz [001] 50 nanoseconds 50 filament 50 visible wavelengths 50 isotropic 50 X ray beam 50 #μm [001] 50 magnetic flux 50 diffraction 50 conductance 50 pulsed 50 photons 50 output voltage 49 X ray emission 49 hydrogen atom 49 6GHz 49 microwave frequencies 49 quadrature 49 Cosmic rays 49 photodetector 49 particle beam 49 interferometer 49 angstroms 49 infrared wavelengths 49 muon 48 auroral 48 oscillations 48 droplet size 48 photodiodes 48 intensities 48 voltages 48 exciton 48 infrared laser 48 sunspot cycle 48 ionised 48 #.#nm [001] 48 terahertz radiation 48 sinusoidal 48 antiprotons 48 radiometer 48 rubidium 48 muons 47 magnetization 47 resonator 47 micrometer 47 excitons 47 nanometers nm 47 bandgap 47 toroidal 47 Pulsed 47 filaments 47 oscillation 47 multimode fiber 47 lasing 47 polarizations 47 spectra 47 amplitude 47 kilohertz 47 magnetic fields 47 cosmic ray