Journal
OPTICS LETTERS
Volume 41, Issue 10, Pages 2310-2313Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.41.002310
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Funding
- National Natural Science Foundation of China (NSFC) [60907003]
- Foundation of NUDT [JC13-02-13]
- Natural Science Foundation of Hunan Province [13JJ3001]
- Program for New Century Excellent Talents in University (NCET) [NCET-12-0142]
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A new filter structure and optical field modulator with ultra-high resolution based on plasmonic nano-cavity resonators is proposed and numerically investigated. The structure consists of a square nano-cavity resonator connected with several waveguides. All waveguides and cavity are etched on a silver film whose size is 1.1 x 0.75 mu m. Compared with traditional filters, the FWHM (full width at half-maximum) of this structure's spectrum curve can be less than 7 nm; namely, the resolution has been greatly improved. The structure also presents the feature of an optical field modulator when both inputs are working simultaneously, and it provides a promising way to design and manufacture future optical logical device. (C) 2016 Optical Society of America
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