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Absolute Two-photon Absorption Coefficient at 355 nm in UV Glasses*

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Abstract

We report here the absolute two-photon absorption coefficient (β) at 354.7 nm in BK-10, ARG-2, and BK-7 borosilicate glasses, FK-54 fluorophosphate glass, and fused silica. These results include the first absolute measurements of β in wide-band-gap, multicomponent glasses which are potentially useful for high-power transmissive optics in the ultraviolet. The linear absorption edge (0.1 cm−1) in these materials is located at approximately 300, 315, 340, 260, and 170 nm, respectively.

© 1981 Optical Society of America

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