Conformal antireflection coatings for optical dome covers by atomic layer deposition
APPLIED OPTICS(2023)
摘要
Complex 3D-shaped optics are difficult to coat with conventional technologies. In this research, large top -open optical glass cubes with a 100 mm side length were functionalized to simulate large dome-shaped optics. Antireflection coatings for the visible range (420-670 nm) and for a single wavelength (550 nm) were applied by atomic layer deposition simultaneously on two and six demonstrators, respectively. Reflectance measure-ments on both the inner and outer glass surfaces confirm a conformal AR coating with a residual reflectance significantly below 0.3% for visible wavelengths and 0.2% for single wavelengths on nearly the entire surface of the cubes.(c) 2023 Optica Publishing Group
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关键词
conformal antireflection coatings,optical dome covers
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