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VOLUME-PHASE HOLOGRAPHIC DIFFRACTION GRATING OPTIMIZED FOR THE ULTRAVIOLET SPECTRAL REGION
VOLUME-PHASE HOLOGRAPHIC DIFFRACTION GRATING OPTIMIZED FOR THE ULTRAVIOLET SPECTRAL REGION
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机译:紫外光谱区的体相全息衍射光栅优化
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摘要
A volume-phase holographic diffraction grating device is provided that can be optimized for use with very short wavelength light, such as light in the ultraviolet (UV) spectral region. The device comprises a cover and a substrate, both formed of a glass material. A layer of gelatin material is disposed between the cover and the substrate member, and has holographically-formed varying indexes of refraction formed therein to set up the interference pattern. The gelatin material has a thickness between 0.5 and 1 micron that makes it suitable for diffracting light in the UV spectral region, long-lived, and very efficient.
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