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Fabrication of a 50 nm half-pitch wire grid polarizer using nanoimprint lithography

机译:使用纳米压印光刻技术制造50 nm半间距线栅偏振器

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We report the fabrication of a 50 nm half-pitch wire grid polarizer with high performance using nanoimprint lithography. The device is a form of aluminium gratings on a glass substrate whose size of 5.5 cm x 5.5 cm is compatible with a microdisplay panel. A stamp with a pitch of 100 nm was fabricated on a silicon substrate using laser interference lithography and sidewall patterning. The imprint and the aluminium etching processes are optimized to realize uniform aluminium gratings with aspect ratio of 4. The polarization extinction ratio of the fabricated device is over 2000, with transmission of 85 percent at a wavelength of 450 nm, which is the highest value ever reported. This work demonstrates that nanoimprint lithography is a unique cost-effective solution for nanopatterning requirements in consumer electronics components.
机译:我们报告使用纳米压印光刻技术制造具有高性能的50 nm半间距线栅偏振器。该设备是玻璃基板上铝光栅的一种形式,其尺寸为5.5厘米x 5.5厘米,可与微显示面板兼容。使用激光干涉光刻和侧壁图案在硅基板上制造间距为100 nm的压模。优化压印和铝蚀刻工艺,以实现纵横比为4的均匀铝光栅。所制造器件的偏振消光比超过2000,在450 nm波长下的透射率为85%,这是有史以来的最高值。报告。这项工作表明,纳米压印光刻技术是一种独特的经济高效的解决方案,可满足消费电子组件中的纳米图案要求。

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