What is an infrared photon?

Answer 1

First - the word light is the same as the word radiation. We generally use light to refer to visible light, or those frequencies just above is (ultra-violet), or those frequencies just below (infrared).

Infrared radiation is perceived as heat, so anything that emits heat is a source of infrared light. The sun is the biggest source, but other sources include fire, light bulbs, toasters, our bodies and anything else that emits heat.

Light Emitting Diodes can be designed to emit small amounts of infrared at very specific wavelengths. The heat generated by these is too small for humans to perceive, but these are also sources of infrared and are found in TV remote controls, night vision equipment and security sensors to name a few.

Answer 2

An infrared photon is a packet of energy in the form of electromagnetic radiation that falls within the infrared region of the electromagnetic spectrum. Infrared photons have longer wavelengths and lower frequencies than visible light, and are commonly associated with heat and thermal imaging applications.

Answer 3

A photon whose frequency is in the infra-red spectrum: about 1 to 400 THz.

Answer 4

any warm object