- infrared optical film materials
- infrared optical glass
- infrared optical materials
- infrared optical parametric oscillator
- infrared optical plastics
- infrared optical protective film
- infrared optical system
- infrared optics
- infrared photo-dissociation spectroscopy
- infrared photoelectric system
- infrared photoelectric system performance
- infrared photography
- infrared photometer
- Infrared Photometer/Spectrometer
- infrared photometry
- infrared physics
- infrared point source homing guidance
- infrared polarimetry
- infrared polarization imaging
- infrared polarizer
- infrared pre-drying
- infrared prism
- infrared quenching
- infrared radiating coating
- infrared radiation