Development of a glue-free bimorph mirror for use in vacuum chambers

PZT (lead zirconate titanate)-glued bimorph deformable mirrors are widely used in hard X-ray regimes; however, they have not yet been used in soft X-ray regimes because they are less compatible for usage under high vacuum. In this study, we developed a glue-free bimorph deformable mirror, in which s...

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Published inReview of scientific instruments Vol. 90; no. 2; p. 021702
Main Authors Ichii, Yoshio, Okada, Hiromi, Nakamori, Hiroki, Ueda, Akihiko, Yamaguchi, Hiroyuki, Matsuyama, Satoshi, Yamauchi, Kazuto
Format Journal Article
LanguageEnglish
Published United States 01.02.2019
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Summary:PZT (lead zirconate titanate)-glued bimorph deformable mirrors are widely used in hard X-ray regimes; however, they have not yet been used in soft X-ray regimes because they are less compatible for usage under high vacuum. In this study, we developed a glue-free bimorph deformable mirror, in which silver nano-particles were employed to bond PZT actuators to mirror substrates. Under an appropriate bonding condition, the bonding layer was confirmed to be uniform and the mirror's bending characteristics were demonstrated to be sufficiently stable; its gas emission rate was also shown to be acceptable. Piezo responses before and after additional heating at 200 °C showed the thermal stability of its bonding and bending properties.
ISSN:1089-7623
DOI:10.1063/1.5066105