Journal
ACS PHOTONICS
Volume 1, Issue 8, Pages 677-682Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ph5000902
Keywords
plasmonics; beam steering; liquid crystals; extraordinary optical transmission; 3D display; active modulation
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Funding
- National Instrumentation Program (NIP) of the Ministry of Science and Technology of China [2011YQ03012408]
- National Natural Science Foundation of China (NSFC) [21373096, 21073073, 91027010]
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We propose a plasmonic angle modulator device based on the extraordinary optical transmission (EOT) phenomenon combined with the liquid, crystal (LC)-tuned surface plasmons (SPs) The configuration of this angle modulator mainly involves an Ag nanograting film for the SP coupling and a LC layer for continuously tuning SPs via voltage signals. Accordingly, the directions of the transmission light through the Ag nanograting film an be tuned continuously, realizing a light beam scanning in a 5 degrees range at an operation rate of 60 Hz. We expect this active-tuned plasmonic angle modulator would have potential applications in three-dimensional (3D) display techniques that strictly require the elaborate and rapid angle modulation of light beams. In addition, this active-tuned plasmonic angle modulator can also be applied in other fields, such as photocommunication, optical detection, beam steering, and so on.
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