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Design and fabrication of far ultraviolet filters based on π-multilayer technology in high-k materials.


ABSTRACT: Application of π-multilayer technology is extended to high extinction coefficient materials, which is introduced into metal-dielectric filter design. Metal materials often have high extinction coefficients in far ultraviolet (FUV) region, so optical thickness of metal materials should be smaller than that of the dielectric material. A broadband FUV filter of 9-layer non-periodic Al/MgF2 multilayer was successfully designed and fabricated and it shows high reflectance in 140-180 nm, suppressed reflectance in 120-137 nm and 181-220 nm.

SUBMITTER: Wang XD 

PROVIDER: S-EPMC4330531 | biostudies-other | 2015

REPOSITORIES: biostudies-other

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