What is the wavelength of infrared radiation?

Infrared radiation is a type of electromagnetic radiation, as are radio waves, ultraviolet radiation, X-rays and microwaves. Infrared (IR) light is the part of the EM spectrum that people encounter most in everyday life, although much of it goes unnoticed. read more

Infrared radiation (IR) is electromagnetic radiation (EMR) with longer wavelengths than those of visible light, and is therefore generally invisible to the human eye (although IR at wavelengths up to 1050 nm from specially pulsed lasers can be seen by humans under certain conditions ). read more

As I learned from an earlier question, it seems after about 30 microns, some people refer to it as Terrahertz ( THz ) radiation. It’s all just infrared, but different wavelengths of infrared have different properties. read more