Related by context. Frequent words. (Click for all words.) 71 diffracted 66 interferometric 66 infrared wavelength 65 visible wavelengths 65 diffraction pattern 64 optical wavelengths 64 plasmon 64 beam splitter 64 interferometry 64 near infrared NIR 64 collimated 64 helium atoms 63 photoluminescence 63 photometry 63 paramagnetic 63 dispersive 63 surface plasmons 63 electron spins 62 Spectrometers 62 keV 62 photometer 62 photodetector 62 auroral 62 diffractive 62 wavelengths 62 ultraviolet wavelengths 61 coronagraph 61 amplitudes 61 anisotropy 61 radiometer 61 absorbance 61 X ray emission 61 X ray telescopes 61 ionised 60 spectrographs 60 soundwaves 60 isotropic 60 phonon 60 elemental composition 60 tropospheric 60 interferometers 60 photonic crystal 60 collimator 59 VIRTIS 59 microwave radiation 59 anisotropic 59 #.# MHz [002] 59 electron density 59 infrared radiation 59 fluorescent molecules 59 gravitational lens 59 scintillation 59 scanning electron microscopy 59 pulsed laser 59 electrophoretic 59 stimulated emission 59 shorter wavelengths 59 fluorescing 58 magnetization 58 attosecond 58 fluorescence microscope 58 oscillatory 58 infrared 58 laser pulse 58 irradiance 58 solar corona 58 laser pulses 58 electromagnetic EM 58 terahertz radiation 58 particle beam 58 fluorophores 58 excitations 58 force microscopy AFM 58 ionisation 58 substorm 58 emissivity 58 cm -1 58 Fourier transform 57 panchromatic 57 Spectroscopy 57 QDs 57 torus 57 spectroscopic 57 Fluorescence 57 Gamma rays 57 Tunable 57 photosphere 57 active galactic nuclei 57 Millimeter wave 57 frequency comb 57 redshifts 57 muon 57 spectra 57 infrared wavelengths 57 ultrasonic waves 57 polar vortex 57 Wilkinson Microwave Anisotropy Probe 56 X ray beam 56 interstellar clouds 56 Cepheids 56 fluoresces