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Pages in category "Infrared sensor materials" The following 15 pages are in this category, out of 15 total. This list may not reflect recent changes. B.
Gallium(II) selenide (Ga Se) is a chemical compound. It has a hexagonal layer structure, similar to that of GaS. [1] It is a photoconductor, [2] a second harmonic generation crystal in nonlinear optics, [3] and has been used as a far-infrared conversion material [4] at 14–31 THz and above. [5]
Indium gallium nitride (InGaN, In x Ga 1−x N) is a semiconductor material made of a mix of gallium nitride (GaN) and indium nitride (InN). It is a ternary group III/group V direct bandgap semiconductor. Its bandgap can be tuned by varying the amount of indium in the alloy.
The materials used for the LED have a direct band gap with energies corresponding to near-infrared, visible, or near-ultraviolet light. LED development began with infrared and red devices made with gallium arsenide. Advances in materials science have enabled making devices with ever-shorter wavelengths, emitting light in a variety of colors.
"All-metallic three-dimensional photonic crystals with a large infrared bandgap" JG Fleming, SY Lin, I El-Kady, R Biswas, KM Ho, Nature 417 (6884), 52-55 (2002). "Three-dimensional control of light in a two-dimensional photonic crystal slab" E Chow, SY Lin, SG Johnson, PR Villeneuve, JD Joannopoulos, Joel R Wendt, Gregory A Vawter, W Zubrzycki ...
Aluminium gallium indium phosphide (Al Ga In P, also AlInGaP, InGaAlP, etc.) is a semiconductor material that provides a platform for the development of multi-junction photovoltaics and optoelectronic devices. It has a direct bandgap ranging from ultraviolet to infrared photon energies. [1]
Infrared communications are useful for indoor use in areas of high population density. IR does not penetrate walls and so does not interfere with other devices in adjoining rooms. Infrared is the most common way for remote controls to command appliances. Infrared remote control protocols like RC-5, SIRC, are used to communicate with infrared.
Oldcastle Materials Inc. is a supplier of asphalt, concrete, and other building materials, and also offers construction and paving services. The Atlanta-based company is a subsidiary of CRH plc, a publicly traded international group of diversified building materials businesses, [2] [3] and has approximately 18,000 employees at 1,200 locations, as of March 2018.