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BROADBAND DISPERSION-FREE OPTICAL FILTER CAVITIES BASED ON DIELECTRIC MIRRORS WITH COMPLEMENTARY DISPERSION
BROADBAND DISPERSION-FREE OPTICAL FILTER CAVITIES BASED ON DIELECTRIC MIRRORS WITH COMPLEMENTARY DISPERSION
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机译:基于带互补色散电镜的宽带无色散滤光片腔
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摘要
A substantially dispersion-free optical filter cavity includes a first multilayer mirror and a second multilayer mirror, wherein each mirror includes layers of a less-refractive material and layers of a more-refractive material, the more-refractive material having a higher index of refraction than the less-refractive material. The mirrors are separated by a spacing, and the thickness of a plurality of the layers in the second multilayer mirror differ from corresponding layers in the first multilayer mirror to provide the cavity with complementary group-delay dispersion across the cavity with a phase difference within, e.g., 0.015 rad across a range of wavelengths spanning at least, e.g., 50 nm.
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