अवरक्त
Also known as infrared, infrared ray, IR, infrared light, infrared rays, IR radiation, IR ray
thumb|A false color|false-color image of two people taken in long-wavelength infrared (body-temperature thermal) radiation Infrared (IR; sometimes called infrared light) is electromagnetic radiation (EMR) with wavelengths longer than that of visible light but shorter than microwaves. The infrared spectral band begins with the waves that are just longer than those of red light (the longest waves in the visible spectrum), so IR is invisible to the human eye. IR is generally (according to ISO, CIE) understood to include wavelengths from around to . IR is commonly divided between longer-wavelength
AI overview
Infrared radiation is a type of invisible light with wavelengths longer than visible red light but shorter than microwaves, which is why we can't see it with our eyes. It's useful for many applications, such as thermal imaging that can detect heat from objects like people's bodies.
AI-generated from the Wikipedia summary — may contain errors.
Research
34,044 papers- Biological effects and medical applications of infrared radiation.ReviewJournal of photochemistry and photobiology. B, Biology · 2017Tsai SR, Hamblin MRDOI: 10.1016/j.jphotobiol.2017.04.014
- Infrared radiation is an ancient pollination signal.Science (New York, N.Y.) · 2025Valencia-Montoya WA, Liénard MA, Rosser N et al.DOI: 10.1126/science.adz1728
- Biological Effects of Sunlight, Ultraviolet Radiation, Visible Light, Infrared Radiation and Vitamin D for Health.ReviewAnticancer research · 2016Holick MF
- Infrared radiation for cancer hyperthermia: the light to brighten up oncology.ReviewExpert review of anticancer therapy · 2024Ye M, Yin D, Wu Y et al.DOI: 10.1080/14737140.2024.2416063