Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7929360 | Optics Communications | 2017 | 4 Pages |
Abstract
Tunable local excitation of surface plasmon polaritons (SPP) by sum-frequency generation (SFG) in Zinc Oxide (ZnO) nanowires on a smooth and thin silver film has been studied by applying angle resolved leakage radiation spectroscopy. SFG between an infrared (IR) source, with a variable wavelength in the telecom range between 1350Â nm and 1550Â nm, and a near-infrared (NIR) source with a fixed wavelength of 790Â nm resulted in the excitation of SPP's at wavelengths between 498Â nm and 523Â nm. The SFG to SPP coupling efficiency was studied as a function of the excitation angle and the wavelength of the IR source. It was shown that the SPP coupling was most efficient at oblique excitation angles, and that SFG in ZnO nanowires allows for the coherent conversion of optical signals at telecom frequencies to SPP's with frequencies within the visible range.
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Physical Sciences and Engineering
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Electronic, Optical and Magnetic Materials
Authors
Mads Brincker, Kjeld Pedersen, Esben Skovsen,