Effect of slit width on surface plasmon resonance

Yingying Wang; Feng Qin; Zao Yi; Xifang Chen; Zigang Zhou; Hua Yang; Xu Liao; Yongjian Tang; Weitang Yao; Yougen Yi

doi:10.1016/j.rinp.2019.102711

Results in Physics (Dec 2019)

Effect of slit width on surface plasmon resonance

Yingying Wang,
Feng Qin,
Zao Yi,
Xifang Chen,
Zigang Zhou,
Hua Yang,
Xu Liao,
Yongjian Tang,
Weitang Yao,
Yougen Yi

Affiliations

Yingying Wang: Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China; Sichuan Civil-Military Integration Institute, Mianyang 621010, China
Feng Qin: Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China; Sichuan Civil-Military Integration Institute, Mianyang 621010, China
Zao Yi: Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China; Sichuan Civil-Military Integration Institute, Mianyang 621010, China; Corresponding authors at: Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China.
Xifang Chen: Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China; Sichuan Civil-Military Integration Institute, Mianyang 621010, China
Zigang Zhou: Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China; Sichuan Civil-Military Integration Institute, Mianyang 621010, China; Corresponding authors at: Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China.
Hua Yang: State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China
Xu Liao: Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China; Sichuan Civil-Military Integration Institute, Mianyang 621010, China
Yongjian Tang: Sichuan Civil-Military Integration Institute, Mianyang 621010, China
Weitang Yao: Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China; Sichuan Civil-Military Integration Institute, Mianyang 621010, China
Yougen Yi: College of Physics and Electronics, Central South University, Changsha 410083, China

DOI: https://doi.org/10.1016/j.rinp.2019.102711
Journal volume & issue: Vol. 15

Abstract

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In this paper, a hybrid resonator composed of an all-metal grating made of copper and a dielectric cavity filled with SiO2 between slits is simulated and calculated by the finite-difference time-domain method (FDTD). We study the effect of slit width on surface plasmon resonance by changing the size of the dielectric cavity. In the case of parallel light incident vertically, the resonator can achieve multi-band absorption and have a perfect absorption peak. The dielectric cavity can not only localize the incident light wave, but also enhance the effect of surface plasmon of metal structure. Our results can be widely used in the field of surface plasmon, which is beneficial to the development of surface plasmon resonators in sensing and detection. Keywords: Multi-band, Surface plasmon resonance, Perfect absorption, Full metal grating, Slit

Published in Results in Physics

ISSN: 2211-3797 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics
Website: https://www.sciencedirect.com/journal/results-in-physics

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