IUPAC - near-infrared radiation (08642)

near-infrared radiation

synonym: near-IR

https://doi.org/10.1351/goldbook.08642

Infrared radiation of which vacuum wavenumbers range from approximately

12 800 {cm}^{- 1}

4800 {cm}^{- 1}

and wavelengths range from approximately

780 nm

2500 nm

Note:
The region is often divided into the silicon region between

12 800 {cm}^{- 1}

and

9000 {cm}^{- 1}

(

800 nm

and

1100 nm

) and the lead sulfide region between

9000 {cm}^{- 1}

and

4000 {cm}^{- 1}

(

1100 nm

and

2500 nm

), where the names reflect the common detector for the region.

Source:
PAC, 2021, 93, 647. (Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)) on page 755 [Terms] [Paper]

Citation: 'near-infrared radiation' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.08642 RIS BibTex EndNote

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near-infrared radiation