Infrared emission refers to the release of energy in the form of infrared radiation, which is a type of electromagnetic radiation with wavelengths longer than visible light. This process occurs when objects, such as the sun or warm surfaces, emit heat energy. Infrared radiation is not visible to the human eye but can be detected as heat. Many devices, like infrared cameras and remote controls, utilize infrared emission to function. These devices can detect or emit infrared radiation, allowing for applications in night vision, thermal imaging, and wireless communication. Understanding infrared emission is essential in fields like astronomy and thermography.