Related by context. Frequent words. (Click for all words.) 74 interferometry 69 interferometers 68 photometry 67 interferometer 67 photometer 65 spectroscopic 65 radiometer 65 spectroscopy 65 VLBI 63 multispectral 63 spectrographs 63 diffractive 63 optical microscopy 63 confocal 63 nanomechanical 63 InGaAs 62 InSAR 62 near infrared NIR 62 CCD camera 62 optical coherence tomography OCT 62 spectrometry 62 photodetector 62 infrared 61 frequency comb 61 dispersive 61 isotropic 61 confocal microscopy 61 FRET 61 photometric 61 neutron scattering 61 hyperspectral 61 optical wavelengths 61 Fluorescence 61 ionisation 61 ESO Very Large Telescope 60 transmission electron microscope 60 wavefront 60 X ray diffraction 60 Raman spectroscopy 60 SQUID 60 sensor arrays 59 anisotropy 59 absorbance 59 optical microscope 59 diffraction 59 Adaptive Optics 59 terahertz radiation 59 Tunable 59 OSIRIS 59 photodiode 59 colorimetric 59 Spectrometer 59 spatial resolution 59 radial velocity 59 tomography 59 microlensing 58 electrophoretic 58 VLBA 58 spectrometer 58 photonic crystal 58 Lidar 58 collimator 58 electron spins 58 kinematic 58 ionospheric 58 infrared IR 58 scanning electron microscopy 58 lidar 58 synchrotron radiation 58 visible wavelengths 58 entangled photons 58 FTIR 58 photodiodes 58 NICMOS 58 XMM Newton 58 gravitational wave 58 optical coherence tomography 58 adaptive optics 57 Spectroscopy 57 tropospheric 57 attosecond 57 shorter wavelengths 57 surface roughness 57 anisotropic 57 fluorescence imaging 57 photodetectors 57 Remote sensing 57 ASTER 57 exciton 57 InGaN 57 WFC3 57 scanning tunneling microscope 57 spectra 57 spectrometers 57 #.#μm [001] 57 solar corona 57 reflectance 57 X ray fluorescence 57 ultrasonics 57 laser ablation 57 electron density