We propose a thin, single-layered circular dichroic filter with Au nanospiral structures on a polydimethylsiloxane (PDMS) thin film that has strong circular dichroism at visible wavelengths. Au nanospiral structures with a diameter of 70 nm were fabricated by cryogenic glancing angle deposition on a substrate with a nanodot array template patterned with the block copolymer PS-PDMS. The Au nanospiral structures were transferred onto a transparent and flexible PDMS thin film to fabricate a thin, single-layered circular dichroic filter. The filter had a very large circular dichroism peak of −830 mdeg at 630 nm. The results show that the Au nanospiral structures transferred onto PDMS thin film exhibit large circular dichroism at visible wavelengths.

中文翻译：

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金纳米螺旋转移到PDMS膜上，在可见波长下表现出圆二色性。

我们提出了一种在聚二甲基硅氧烷（PDMS）薄膜上具有Au纳米螺旋结构的薄单层圆形二向色滤光片，该薄膜在可见光波长下具有很强的圆形二向色性。通过低温掠射角沉积在具有用嵌段共聚物PS-PDMS图案化的纳米点阵列模板的基底上来制造具有70nm直径的Au纳米螺旋结构。将金纳米螺旋结构转移到透明且柔性的PDMS薄膜上，以制造薄的单层圆形二向色滤光片。滤光片在630 nm处具有-830 mdeg的很大的圆二色性峰。结果表明，转移到PDMS薄膜上的Au纳米螺旋结构在可见光波长下显示出较大的圆二色性。