IPC Subgroup
G01N 21/3581 using far infrared light; using Terahertz radiation
Introduced: January 2014
Full Title
Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light > Systems in which incident light is modified in accordance with the properties of the material investigated > Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands > Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry > using infrared light > using far infrared light; using Terahertz radiation
Classification Context
- Section:
- PHYSICS
- Class:
- MEASURING; TESTING
- Subclass:
- INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
1 direct subcode
Child Classifications
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- G01N 21/3586 by Terahertz time domain spectroscopy [THz-TDS]