| 标题 |
High-efficiency sol-gel antireflection coatings for astronomical potics
天文光学用高效溶胶——凝胶减反射膜
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作者：JR Stilburn 摘要：The antireflective properties of silica sol-gel coatings have been known for some time, and such coatings have been used to reduce losses in the optical elements of high-powered lasers used in fusion experiments. Research at DAO has develped the technology to the point where optical elements in three 4-metre class telescopes at CFHT, KPNO, and CTIO have benefited from coatings made from high-efficiency sol-gel films. The process is attractive because it is simple to apply, is inexpensive, and is as effective as multi-layer vacuum-deposited coatings which it can replace. A description is given of the basic chemistry involved and the techniques used to apply the coatings. Techniques used to improve the durability of the films by hardening and waterproofing are described, as well as a two-layer coating in combination with magnesium fluoride.收起 关键词：antireflection sol-gel 会议名称：Conference on optical and IR telescope instrumentation and detectors |
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