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Plasmonic cavity-apertures as dynamic pixels for the simultaneous control of colour and intensity.


ABSTRACT: Despite steady technological progress, displays are still subject to inherent limitations in resolution improvement and pixel miniaturization because a series of colours is generally expressed by a combination of at least three primary colour pixels. Here we propose a structure comprising a metal cavity and a nanoaperture, which we refer to as a cavity-aperture, to simultaneously control the colour and intensity of transmitted light in a single pixel. The metal cavity constructs plasmonic standing waves to organize the spatial distribution of amplitudes according to wavelength, and the nanoaperture permits light with a specific wavelength and amplitude to pass through it, depending on the nanoaperature's relative position in the cavity and the polarization state of the incident light. Therefore, the cavity-aperture has the potential to function as a dynamic colour pixel. This design method may be helpful in developing various photonic devices, such as micro-imaging systems and multiplexed sensors.

SUBMITTER: Yun H 

PROVIDER: S-EPMC4455134 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature

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Plasmonic cavity-apertures as dynamic pixels for the simultaneous control of colour and intensity.

Yun Hansik H   Lee Seung-Yeol SY   Hong Keehoon K   Yeom Jiwoon J   Lee Byoungho B  

Nature communications 20150520


Despite steady technological progress, displays are still subject to inherent limitations in resolution improvement and pixel miniaturization because a series of colours is generally expressed by a combination of at least three primary colour pixels. Here we propose a structure comprising a metal cavity and a nanoaperture, which we refer to as a cavity-aperture, to simultaneously control the colour and intensity of transmitted light in a single pixel. The metal cavity constructs plasmonic standi  ...[more]

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