infrared

a device that creates an image using infrared radiation, allowing one to 'see' heat

light in the part of the spectrum that is not visible, used for example in night-vision equipment

electromagnetic radiation with longer wavelengths than visible light, often experienced as heat

a laser device that emits a beam of light in the infrared spectrum

a focused line of infrared light or radiation, often used in remote controls or security systems

a line of infrared energy

the specific length of a wave in the infrared portion of the electromagnetic spectrum

an image created using infrared photography

the technique of capturing images using light from the infrared spectrum