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Boosting a sub-10 nm nanogap array by plasmon-triggered waveguide resonance
Y. Tian, H. L. Wang, Y. J. Geng, L. L. Cong, Y. Liu, W. Q. Xu and S. P. Xu
2020
发表期刊Photonics Research
ISSN2327-9125
卷号8期号:12页码:1850-1856
摘要Gap-type metallic nanostructures are widely used in catalytic reactions, sensors, and photonics because the hotspot effect on these nanostructures supports giant local electromagnetic field enhancement. To achieve hotspots, researchers devote themselves to reducing gap distances, even to 1 nm. However, current techniques to fabricate such narrow gaps in large areas are still challenging. Herein, a new coupling way to boost the sub-10 nm plasmonic nanogap array is developed, based on the plasmon-triggered optical waveguide resonance via near-field coupling. This effect leads to an amplified local electromagnetic field within the gap regions equivalent to narrower gaps, which is evidenced experimentally by the surface-enhanced Raman scattering intensity of probed molecules located in the gap and the finite-difference time-domain numerical simulation results. This study provides a universal strategy to promote the performance of the existing hotspot configurations without changing their geometries. (C) 2020 Chinese Laser Press
DOI10.1364/prj.404092
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收录类别SCI ; EI
语种英语
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文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/64337
专题中国科学院长春光学精密机械与物理研究所
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Y. Tian, H. L. Wang, Y. J. Geng, L. L. Cong, Y. Liu, W. Q. Xu and S. P. Xu. Boosting a sub-10 nm nanogap array by plasmon-triggered waveguide resonance[J]. Photonics Research,2020,8(12):1850-1856.
APA Y. Tian, H. L. Wang, Y. J. Geng, L. L. Cong, Y. Liu, W. Q. Xu and S. P. Xu.(2020).Boosting a sub-10 nm nanogap array by plasmon-triggered waveguide resonance.Photonics Research,8(12),1850-1856.
MLA Y. Tian, H. L. Wang, Y. J. Geng, L. L. Cong, Y. Liu, W. Q. Xu and S. P. Xu."Boosting a sub-10 nm nanogap array by plasmon-triggered waveguide resonance".Photonics Research 8.12(2020):1850-1856.
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