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Update On Optical Crystal Technology
May 2009
ROCHESTER, N.Y., May 15, 2009 – “There aren’t too many crystal growers out there,” says Andrew G. Timmerman of Fairfield Crystal Technology LLC. “It’s a small community.”

A small community with a big number of applications.

Fairfield, located in New Milford, Conn., is a developer and manufacturer of crystal products for the optical and semiconductor industries. The company’s current optical crystal products – calcium fluoride, barium fluoride, magnesium fluoride and zinc sulfide crystals – are transparent in a wide spectrum and are widely used in optical windows, lenses and prisms and operate in the IR and UV spectrums.

Crystals can be characterized in several ways, Timmerman said in his presentation at Optifab 2009: synchrotron x-ray topography, edge pit density analysis, AFM surface roughness analysis, cross-polarizer crystal analysis, birefringence analysis, laser damage testing and transmission testing. And the applications for optical crystals are many: They play a large role in high-tech industries, including semiconductors, lasers, solid-state lighting, microlithography, spectroscopy, and defense and detection systems.

The company also offers component manufacturing for designs and applications. Timmerman said the company’s component-fabrication team manufactures highly polished single-crystal lenses, prisms, wedges, waveplates and other optical components to customers’ specifications. Projects include contracts with the Department of Energy, the National Science Foundation, NIST, US Army research labs and the US Air Force.

Laura S. Marshall

A technique for producing micron-size structures on surfaces by using short-wavelength light or electron beams.
The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
AFM Surface Roughness AnalysisAndrew G. TimmermanBirefringence AnalysisConsumerCross-Polarizer Crystal AnalysisCrystal ProductscrystalsdefenseDefense and Detection SystemsDepartment of EnergyFairfield Crystal Technology LLCindustrialLaser Damage TestinglensesmicrolithographyNational Science FoundationNISToptical crystalsoptical windowsopticsphotonicsPrismsSemiconductor Industriessemiconductorssolid-state lightingspectroscopyTransmission TestingUS Air ForceUS Army

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