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Thermal infrared spectroscopy (TIR spectroscopy) is the subset of infrared spectroscopy that deals with radiation emitted in the infrared part of the electromagnetic spectrum. The emitted infrared radiation, though similar to blackbody radiation, is different in that the radiation is banded at characteristic vibrations in the material. The method measures the thermal infrared radiation emitted (as opposed to being transmitted or reflected) from a volume or surface. This method is commonly used to identify the composition of surface by analyzing its spectrum and comparing it to previously measured materials. It is particularly suited to airborne and spaceborne applications.

Thermal infrared spectrometers

TIMS: a multispectral radiometer flown on C-130, ER-2, and the Stennis Learjet aircraft.
SEBASS: a hyperspectral sensor developed and operated by The Aerospace Corporation.
Hyper-Cam: a hyperspectral thermal infrared camera developed by Telops.
OWL: a hyperspectral thermal infrared camera developed by Specim.[1]


ISM: An imaging spectrometer on board the Soviet Phobos 2 spacecraft.
ASTER: a multispectral radiometer on board the Earth-observing Terra satellite.
TIS: A spectrometer is on board the Mangalyan spacecraft.
TES: A hyperspectral spectrometer on board the Mars Global Surveyor spacecraft.
Mini-TES: a small version of the TES instrument carried on both Mars Exploration Rovers.
THEMIS: a multispectral thermal infrared imager on board the 2001 Mars Odyssey spacecraft.
OTES: thermal spectroscopy aboard OSIRIS-REx spacecraft


Frost&Sullivan, Technical Insights, Aerospace&Defence (Feb 2011), #5: World First Thermal Hyperspectral Camera for Unmanned Aerial Vehicles.

External links

Arizona State University TES Homepage
Description of the TIMS instrument



FT-IR Raman Resonance Raman Rotational Rotational–vibrational Vibrational Vibrational circular dichroism


Ultraviolet–visible Fluorescence Vibronic Near-infrared Resonance-enhanced multiphoton ionization (REMPI) Raman optical activity spectroscopy Raman spectroscopy Laser-induced

X-ray and

Energy-dispersive X-ray spectroscopy Photoelectron Atomic Emission X-ray photoelectron spectroscopy EXAFS


Gamma Mössbauer


NMR Terahertz ESR/EPR Ferromagnetic resonance


Acoustic resonance spectroscopy Auger spectroscopy Astronomical spectroscopy Cavity ring-down spectroscopy Circular dichroism spectroscopy Coherent anti-Stokes Raman spectroscopy Cold vapour atomic fluorescence spectroscopy Conversion electron Mössbauer spectroscopy Correlation spectroscopy Deep-level transient spectroscopy Dual-polarization interferometry Electron phenomenological spectroscopy EPR spectroscopy Force spectroscopy Fourier-transform spectroscopy Glow-discharge optical emission spectroscopy Hadron spectroscopy Hyperspectral imaging Inelastic electron tunneling spectroscopy Inelastic neutron scattering Laser-induced breakdown spectroscopy Mössbauer spectroscopy Neutron spin echo Photoacoustic spectroscopy Photoemission spectroscopy Photothermal spectroscopy Pump–probe spectroscopy Saturated spectroscopy Scanning tunneling spectroscopy Spectrophotometry Time-resolved spectroscopy Time-stretch Thermal infrared spectroscopy Video spectroscopy Vibrational spectroscopy of linear molecules

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