Related by context. Frequent words. (Click for all words.) 56 photometer 54 interferometry 54 wavefront 53 interferometers 52 beam splitter 52 photometry 52 collimator 51 spectrographs 51 interferometer 51 interferometric 51 telescope 50 Microscopes 50 confocal 50 adaptive optics 50 confocal microscope 49 Adaptive Optics 49 infrared IR 49 z axis 49 optical wavelengths 49 parallax 49 near infrared NIR 49 diffraction pattern 48 CCD camera 48 photometric 48 eyepieces 48 magnification 48 Tomography 48 stereoscopic images 48 kinematic 48 HiRISE camera 48 microwave frequencies 48 magnifications 48 imager 48 Antennae 47 STIS 47 frequency comb 47 aspheric 47 radar altimeter 47 AFMs 47 diffraction 47 infrared 47 scanning electron microscope 47 photoluminescence 47 interplanetary spacecraft 47 confocal microscopy 47 electron spins 47 STScI 47 SIRTF 46 LROC 46 optical 46 Resolution Imaging 46 scanning tunneling microscope 46 multispectral 46 doppler 46 optical microscopes 46 transmission electron microscope 46 beamline 46 ZEISS 46 colorimeter 46 Waveform 46 nebulas 46 planar 46 WFPC2 45 auroral 45 tomography 45 photonic crystal 45 scalers 45 galaxy NGC 45 optical coherence tomography 45 multispectral imaging 45 coronal 45 SQUID 45 computerized tomography 45 stereotactic 45 Z axis 45 CubeSat 45 VIRTIS 45 Backlit 45 optical microscopy 45 viewport 45 ultrasonic sensors 45 opto 45 Infrared 45 HRSC 45 frequency modulation 45 scanning electron microscopy 45 spectral 45 ESO Very Large Telescope 45 Optically 45 isotropic 45 spherical 45 infra red 44 Radiographic 44 photodetector 44 geoid 44 near infrared spectroscopy 44 astronomical observations 44 radiometer 44 baseplate 44 ultraviolet wavelengths 44 #um [002]