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Mid-IR LEDs

BioPhotonics
Sep 2014
Terahertz Device Corp.Request Info
 
SALT LAKE CITY, May 21, 2014 — Terahertz Device Corp.’s QuiC SLED, a line of quantum interband-cascade superlattice LEDs, brings bright, fast-switching light to the MWIR atmospheric window.

The LEDs emit 4.25-µm wavelength light with peak power above 2 mw and an emission peak overlapping the carbon dioxide absorption line. The devices cover mid-IR wavelengths from 3 µm to 15 µm.

QuiC SLED enables applications in the chemical, thermal imaging and biophotonics industries, among others.


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GLOSSARY
atmospheric window
A range of wavelengths within which radiation transmitted through the atmosphere suffers relatively little absorption by atmospheric gases.
light
Electromagnetic radiation detectable by the eye, ranging in wavelength from about 400 to 750 nm. In photonic applications light can be considered to cover the nonvisible portion of the spectrum which includes the ultraviolet and the infrared.
power
With respect to a lens, the reciprocal of its focal length. The term power, as applied to a telescope or microscope, often is used as an abbreviation for magnifying power.
quantum
Smallest amount into which the energy of a wave can be divided. The quantum is proportional to the frequency of the wave. See photon.
thermal imaging
The process of producing a visible two-dimensional image of a scene that is dependent on differences in thermal or infrared radiation from the scene reaching the aperture of the imaging device.
absorption line
The wavelength or frequency corresponding to an absorption resonance with a given molecular or atomic species. The line spectrum will vary with the element as well as the molecular compound.
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