visible spectrum

(redirected from Visible region)
Also found in: Dictionary, Thesaurus, Medical.

visible spectrum

[′viz·ə·bəl ′spek·trəm]
(spectroscopy)
The range of wavelengths of visible radiation.
A display or graph of the intensity of visible radiation emitted or absorbed by a material as a function of wavelength or some related parameter.
References in periodicals archive ?
2] thin film is highly transparent in the visible region with a value of 79%.
It should be noted that the shifting of the absorption peak toward visible region and the enlargement of absorption band (the so-called "tail" of the band) for all doped Ti[O.
No significant changes occurred in the visible region (700-400 nm) of the silicones when aged for more than a couple years at 150[degrees]C.
Therefore, much of the research focuses on changing the response from the UV to the visible region.
In contrast with clays, the distinctive absorption feature of iron oxides appears in the visible region of electromagnetic spectrum.
Prior to the start of the project, students were administered a pretest to assess their knowledge of the properties of electromagnetic radiation, specifically in the visible region, and of electronic components and circuits.
The primary absorption band maxima ((lambda)max) of the samples radiated in high dosimetry has shifted from 500nm to the very low range of visible region, at 420nm, as the sample solutions were containing almost no dye molecules.
Among specific topics are elastic moduli, applications of ultrasonics on tellurite glasses, electrical conductivity, dielectric properties, linear and non-linear optical properties in the visible region, and infrared and Raman spectra of tellurite glasses.
Instruments aboard the Russian Venera 9 and Venera 10 orbiters detected a glow in the visible region of the spectrum on the nightside of Venus emitted when single atoms of oxygen recombine to form diatomic molecules of oxygen.
The absorption peak of this molecule is mainly in the near UV-Vis region and extends slightly into the visible region.
Some inorganic transparent conducting films (2-4) have been investigated because of their high electrical conductivity and high transparency in visible region.