Article Abstracts | September 2005
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A Clear View of Fused Silica Transmission Gratings
As fused silica transmission gratings have evolved to offer high efficiency, low polarization dependence and high power handling capabilities, they have begun to displace reflection gratings in various applications.
by Kristian J. Buchwald, Ibsen Photonics A/S
Diffraction gratings have been manufactured for more than 200 years. Their development was driven initially by the requirements of spectroscopy, where they have been applied since Joseph von Fraunhofer's work in the early 1800s.
For many years, grating production remained the work of high-precision instrument makers, who built one-of-a-kind, complex ruling machines that manually scratched material away from master gratings. Because this technology is time-consuming and expensive, commercial gratings mainly have been replicated: gratings that are copied in large quantities from a master form into a polymer...
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