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- Title
Au Nanospirals Transferred onto PDMS Film Exhibiting Circular Dichroism at Visible Wavelengths.
- Authors
Furusawa, Gaku; Kan, Tetsuo
- Abstract
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.
- Subjects
CIRCULAR dichroism; GLANCING angle deposition; DICHROIC filters; DICHROISM; THIN films; WAVELENGTHS; BLOCK copolymers
- Publication
Atmosphere, 2020, Vol 11, Issue 7, p641
- ISSN
2073-4433
- Publication type
Article
- DOI
10.3390/mi11070641