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Air Force Measures Refractive Index of BGG

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Barium gallogermanate glasses are extraordinarily strong yet still exhibit a transmission region from 0.4 to 5.0 µm, making them seemingly ideal for a vast array of large-optic applications. A team from the US Air Force Research Laboratory at Wright-Patterson Air Force Base in Ohio has measured the refractive index of the glass using a modified spectrometer from Moeller-Wedel Optical GmbH of Wedel, Germany. The measurements, made with the minimum deviation method, are published in the March 1 issue of Applied Optics. The team expects the information to be especially helpful in the development of antireflection coatings for windows and domes made from the material.

Photonics Spectra
Aug 2002
coatingsResearch & TechnologyspectroscopyTech Pulse

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