There are basically two technologies that are widely used in optical sensors: charge-coupled devices (CCDs) and fiber optics.
Mirrors are frequently used in optical systems.
This property is used in optical instruments such as monochromators.
Yttrium compounds are used in optical glasses and as catalysts.
BCO makes chips used in optical switches, devices that direct the flow of voice, video and data traffic.
Giga, which was established in 1998 and is 63percentt owned by NKT, specializes in the design of advanced high-speed communication chips used in optical networking.
Its compounds are used as hosts for scintillators and X-ray phosphors, and the oxide is used in optical lenses.
The principal detection methods used in optical spectroscopy are photographic (e.g., film), photoemissive (photomultipliers), and photoconductive (semiconductor).
Ciena, the American maker of fiber optic equipment, fell $4.53, to $40.14, while Corning, the biggest maker of fiber and cable used in optical networks, fell $1.50, to $14.50.
And within those businesses are numerous subcomponents, making Agilent a company with many product lines, from parts used in optical computer mice, to equipment used in the human genome project, to equipment for building wireless networks.
But there is every reason to believe that a system which works at the frequencies used in optical communication could eventually be built.
