No, the human eye does not detect infrared light wavelengths. The human eye is sensitive to a limited range of the electromagnetic spectrum, commonly known as the visible light spectrum. Visible light wavelengths range from approximately 400 nanometers (nm) at the violet end to about 700 nm at the red end.
Infrared (IR) light lies just beyond the red end of the visible light spectrum and has longer wavelengths than those our eyes can detect. Infrared light has wavelengths typically starting from around 700 nm and can extend up to several millimeters. The specific ranges are often divided into near-infrared (NIR) light (approximately 700 nm to 1.4 micrometers) and far-infrared (FIR) light (1.4 micrometers to 1 millimeter).
Although humans cannot see infrared light directly, some animals, such as certain snakes (e.g., pit vipers) and insects, have specialized organs that can detect infrared radiation. These organs, called pit organs or infrared sensors, allow these animals to sense heat emitted by objects or prey in their environment.
Humans can indirectly visualize infrared light by using special imaging devices like infrared cameras or thermal cameras. These cameras can detect and convert the infrared radiation into visible images or colors that we can perceive. Infrared technology is widely used in various applications, including night vision devices, remote sensing, thermal imaging, and security systems.