Polarimetry
Typically polarimetry is done on electromagnetic waves that have traveled through or have been reflected, refracted or diffracted by some material in order to characterize that object.[3] These hyperspectral and spectropolarimetric imager functioned in radiation regions spanning from ultraviolet (UV) to long-wave infrared (LWIR).[3] The researchers reported visible near infrared system (VISNIR) data (.4-.9 micrometers) which required an RF signal below 1 W power.The reported experimental data indicates that polarimetric signatures are unique to manmade items and are not found in natural objects.The researchers state that a dual system, collecting both hyperspectral and spectropolarimetric information, is an advantage in image production for target tracking.[3] Polarimetric infrared imaging and detection can also highlight and distinguish different features in a scene and give unique signatures of different objects.Polariscopes make use of their polarizing filters to reveal properties of a gem about how it affects light waves passing through it.A polarimeter is the basic scientific instrument used to make these measurements, although this term is rarely used to describe a polarimetry process performed by a computer, such as is done in polarimetric synthetic aperture radar.Polarimetry is used in many areas of astronomy to study physical characteristics of sources including active galactic nuclei and blazars, exoplanets, gas and dust in the interstellar medium, supernovae, gamma-ray bursts, stellar rotation,[9] stellar magnetic fields, debris disks, reflection in binary stars[10] and the cosmic microwave background radiation.
Synthetic aperture radarDeath Valleypolarizationtransverse waveselectromagnetic waveslight wavesreflectedrefracteddiffractedpropagationnicol prismellipsometryremote sensingplanetary scienceastronomyweather radarchiralityacousto-optic tunable filterpiezoelectricultrasonichyperspectral imagingU.S. Army Research Laboratory.Gemologistspolarizing lensespleochroismdichroscopepolarimeterscientific instrumentoptical propertiesbirefringenceoptical rotationlinear dichroismcircular dichroismscatteringinterferometerspolarising filterswave platesPolarimetry is used in many areas of astronomyactive galactic nucleiblazarsinterstellar mediumsupernovaegamma-ray burstsstellar rotationdebris diskscosmic microwave backgroundwavelengthOptically activeplane polarisedpolarizeranalyserspecific rotationmass concentrationCambridge University PressBibcodeNanoCharMPlanetDefinitionExoplanetExoplanet orbital and physical parametersMethods of detecting exoplanetsPlanetary systemPlanet-hosting starsTerrestrialCarbon planetCoreless planetDesert planetDwarf planetHycean planetIce planetIron planetLava planetOcean worldMega-EarthSub-EarthSuper-EarthGaseousEccentric JupiterMini-NeptuneHelium planetHot JupiterHot NeptuneGas giantIce giantSuper-JupiterSuper-NeptuneSuper-puffUltra-hot JupiterUltra-hot NeptuneBlanetBrown dwarfChthonian planetCircumbinary planetCircumtriple planetDisrupted planetDouble planetEcumenopolisEyeball planetGiant planetMesoplanetPlanemoPlanetesimalProtoplanetPulsar planetSub-brown dwarfSub-NeptuneToroidal planetUltra-cool dwarfUltra-short period planet (USP)Formation and evolutionAccretionAccretion diskAsteroid beltCircumplanetary diskCircumstellar discCircumstellar envelopeCosmic dustDebris diskDetached objectExozodiacal dustExtraterrestrial materialsExtraterrestrial sample curationGiant-impact hypothesisGravitational collapseHills cloudInternal structure