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Nonlocal Effects on Field Enhancement in Dimer
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نویسنده
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Zhenshi Chen ,Hui Zhang ,Hao Li ,Lei Wan ,Ning Zhu ,Ting Mei
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منبع
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plasmonics - 2018 - دوره : 13 - شماره : 6 - صفحه:2261 -2266
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چکیده
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nonlocal effect on the enhancement of the fundamental wave and the second harmonic generation in the metal dimmer structure is mainly studied in this paper. the dielectric model of metals was described by the hydrodynamic model. from the simulation results, it is found that the nonlocal effect weakens the field enhancement obviously. in addition, with the same spacing, the nonlocal effect on the second harmonic generation is more severe than the fundamental one. it can also be observed that with fixed spacing, the spectrum peaks of the fundamental/second harmonic wave shift with the side length of the dimer. these results have certain guiding significance to the design devices.
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کلیدواژه
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Harmonic generation ,Nonlinear ,Nonlocal effect
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آدرس
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South China Normal University, Laboratory of Nanophotonic Functional Materials and Devices, China, Guangdong Engineering Technology Research Center of Optoelectronic Functional Materials and Devices, China, South China Normal University, Laboratory of Nanophotonic Functional Materials and Devices, China, South China Normal University, Laboratory of Nanophotonic Functional Materials and Devices, China, South China Normal University, Laboratory of Nanophotonic Functional Materials and Devices, China, Ministry of Education and Shaanxi Key Laboratory of Optical Information Technology, Northwestern Polytechnical University, Key Laboratory of Space Applied Physics and Chemistry, China
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Authors
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