期刊
APPLIED PHYSICS LETTERS
卷 99, 期 3, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3608147
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资金
- Agency for Science, Technology and Research (A*STAR) [092 1540099, 092 1540098]
In this letter, we propose and experimentally demonstrate a color filter based on an annular aperture geometry working in the visible range. The device is built by configuring an array of annular apertures in a gold film suitable for transmission measurement. We show effective fine tuning of resonance peaks through precise geometric control of the aperture dimensions. Selective transmission through annular apertures of various sizes leads to continuous color tuning of transmitted electromagnetic waves. This may find potential for application in high-definition displays, optical filters, ultrafast switching, and bio-sensing. (C) 2011 American Institute of Physics. [doi:10.1063/1.3608147]
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