far-infrared radiation


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far-infrared radiation

[¦fär in·frə′red ‚rād·ē′ā·shən]
(electromagnetism)
Infrared radiation the wavelengths of which are the longest of those in the infrared region, about 50-1000 micrometers; requires diffraction gratings for spectroscopic analysis.
References in periodicals archive ?
Previously, we prepared the tourmaline-containing functional copolymer p (TUC/BA/ MMA), which displayed an excellent storage stability, excellent mechanical properties, superior performance in far-infrared radiation, and enhanced negative ion release [21].
Each subject received four different interventions during the experimental sessions: Session 1 (acupuncture), Session 2 (pseudoacupuncture), Session 3 (far-infrared radiation (FIR)), and Session 4 (acupuncture combined with FIR).
The fact that these three objects, as well as many others from the observational sample, emit strong far-infrared radiation indicates that vigorous star formation is taking place in their galaxies, creating hundreds of stars per year during one or more episodes lasting millions of years.
Dust absorbs both ultraviolet and visible light and reradiates it as far-infrared radiation. Astronomers, however, have few high-resolution telescopes to detect this wavelength band.
Its high-tech sensors, which detect far-infrared radiation, are designed to peer through dust clouds to observe the mysterious process of how stars and galaxies are created.
The expansion of the universe shifts the far-infrared radiation from distant galaxies to longer, submillimeter wavelengths.