This is a list of infrared topics.

• ADONIS: ADaptive Optics Near Infrared System
• ALICE (accelerator)
• Accretion disc
• Advanced Tactical Airborne Reconnaissance System
• Afocal system
• Air-to-air missile
• Anti-ship missile
• Applied spectroscopy
• Atmospheric Infrared Sounder

• Bipolar outflow
• Blackbody infrared radiative dissociation
• Black silicon
• Blue Sky navigation pod

• Calorescence
• Camera trap
• Capnography
• Carbon dioxide sensor
• Ceramic heater
• Charge-coupled device
• Chemical imaging
• Chemical laser
• Circular dichroism
• Circumstellar dust
• Civil Aircraft Missile Protection System
• Cloud albedo
• Cloud feedback
• Cold shield
• Color confinement
• Combat Identification Panel
• Common Infrared Countermeasures program
• Computed tomography laser mammography
• Conveyor belt furnace
• Cooled infrared detector
• Coreshine
• Cosmic background radiation
• Cosmic dust
• Cutoff (physics), infrared cutoff

• Dangerously irrelevant operator
• Dark nebula
• Dazzler (weapon)
• Dichroic filter
• Diffuse Infrared Background Experiment
• Digital ICE
• Digital infrared thermal imaging in health care
• Disco ball
• Draper point
• Driver's vision enhancer
• Driver Monitoring System

• Electric eye
• Electromagnetic spectrum
• Electro-optical MASINT
• Event-related optical signal
• Exozodiacal dust

• Fast INfrared Exoplanet Spectroscopy Survey Explorer
• Femtolab
• Fiber focus infrared soldering
• Filter (optics)
• Forward looking infrared
• Free-space optical communication
• Functional near-infrared imaging

• Galileo (spacecraft)
• Gamma-Ray Burst Optical/Near-Infrared Detector
• Gas detector
• Gas laser
• Glow stick
• Greenhouse
• Greenhouse effect

• H band (infrared)
• HDRi (data format)
• Headlamp
• Heat therapy
• Hot mirror

• Infra-red search and track
• Infrared
• Infrared Astronomy
• Infrared beam
• Infrared blaster
• Infrared camera
• Infrared cirrus
• Infrared cleaning
• Infrared countermeasure
• Infrared cut-off filter
• Infrared dark cloud
• Infrared Data Association
• Infrared Data Transmission
• Infrared decoy flare
• Infrared detector
• Infrared divergence
• Infrared dye
• Infrared excess
• Infrared fixed point
• Infrared gas analyzer
• Infrared grill
• Infrared heater
• Infrared homing
• Infrared horizon-scanning
• Infrared interactance
• Infrared lamp
• Infrared laser
• Infrared light
• Infrared mammography]
• Infrared microscopy
• Infrared multiphoton dissociation
• Infrared open-path detector
• Infrared photography
• Infrared Physics and Technology
• Infrared point sensor
• Infrared Processing and Analysis Center
• Infrared reflective coating
• Infrared remote sensing
• Infrared sauna
• Infrared sensing in snakes
• Infrared sensing in vampire bats
• Infrared sensor
• Infrared Sightings
• Infrared signature
• Infrared slavery
• Infrared smoke
• Infrared soldering
• Infrared sources
• Infrared spectroscopy
• Infrared spectroscopy correlation table
• Infrared stealth
• Infrared telescope
• Infrared Telescope in Space
• Infrared vision
• Infrared window
• Interlock (engineering)
• Interplanetary dust cloud
• Intervalence charge transfer
• Ionic crystal
• Iris recognition

• J band (infrared)

• K band (infrared)
• Kodak High-Speed Infrared

• L band (infrared)
• LaserSoft Imaging
• Laser Ablation Electrospray Ionization
• Laser pointer
• Lazer Tag
• LIDAR detector
• Light gun
• Linux infrared remote control
• List of largest infrared telescopes
• List of astronomical interferometers at visible and infrared wavelengths
• Littoral Airborne Sensor/Hyperspectral
• Loreal pit
• Low Altitude Navigation and Targeting Infrared for Night
• Luminous infrared galaxy
• Lyman-break galaxy

• MPB mine
• Man-portable air-defense systems
• Mercury cadmium telluride
• Metamaterial cloaking #Invisibility cloaking at infrared frequencies
• Meteosat visible and infrared imager
• Mid-Infrared Advanced Chemical Laser
• Minimum resolvable temperature difference
• Mistral (missile)
• Mobile Infrared Transmitter
• Modulation transfer function (infrared imaging)
• Molecular cloud
• Molecular vibration

• Nancy Grace Roman Space Telescope
• Nanoshell
• Near Field Infrared Experiment
• Near Infrared Camera and Multi-Object Spectrometer
• Near-Infrared Mapping Spectrometer
• Near-infrared signature management technology
• Near-infrared spectroscopy
• Near-infrared window in biological tissue
• Negative luminescence
• Net radiometer
• Non-ionizing radiation
• Nondispersive infrared sensor

• OH-Suppressing Infrared Integral Field Spectrograph
• Optical, Spectroscopic, and Infrared Remote Imaging System (OSIRIS)
• Optical properties of water and ice
• Optical window
• Opto-isolator
• Outgoing longwave radiation

• PASS device
• Photometer
• Photon upconversion
• Photosynthetically active radiation
• Photothermal therapy
• Planetary Fourier Spectrometer
• Polariton
• Projection keyboard

• Quantum cascade laser

• RAPTOR
• Radiative flux
• Raman spectroscopy
• Reststrahlen effect
• RG equipment
• RIAS (Remote Infrared Audible Signage)
• Roboraptor

• Shiva laser
• Signal transfer function
• Slide projector
• Soft-collinear effective theory
• Solar gain
• Space-Based Infrared System
• Space-Based Infrared Systems Wing
• Spitzer Infrared Nearby Galaxies Survey
• SPRITE infrared detector
• Stratoscope
• Stratospheric Observatory for Infrared Astronomy
• Structured light
• Super Scope
• Super black
• Surface plasmon polaritons
• Susceptor

• Tail-chase engagement
• Television Infrared Observation Satellite
• The Infra-Red Traffic Logger
• Thermal Emission Spectrometer
• Thermal emittance
• Thermal imaging camera (firefighting)
• Thermal infrared spectroscopy
• Thermofax
• Thermographic camera
• Thermophotovoltaic
• Thermopile
• TrackIR
• Transferability (chemistry)
• Transparency and translucency
• Trombe wall
• Tropical Rainfall Measuring Mission
• Tropospheric Emission Spectrometer
• Two-dimensional infrared spectroscopy
• Two-Micron Sky Survey

• UKIRT Infrared Deep Sky Survey
• Unidentified Infrared Emission (UIE)

• Van der Waals molecule
• Vertical-external-cavity surface-emitting-laser
• Vibrational circular dichroism
• Vibronic transition
• Visible and near-infrared
• Visible and Infrared Survey Telescope for Astronomy
• VS-17

• Wood's glass