Jun. 2020

Article Contents

Chinese Optics> 2020> 13(3): 627-636.

HAN Jing, GAO Yang, JIAO Wei-yan, FAN Guang-hua, GAO Ya-chen. Mid-infrared plasmon regulation based on graphene nanoribbons[J]. Chinese Optics, 2020, 13(3): 627-636. doi: 10.3788/CO.2019-0185

Citation:

HAN Jing, GAO Yang, JIAO Wei-yan, FAN Guang-hua, GAO Ya-chen. Mid-infrared plasmon regulation based on graphene nanoribbons[J].Chinese Optics, 2020, 13(3): 627-636.doi:10.3788/CO.2019-0185

HAN Jing, GAO Yang, JIAO Wei-yan, FAN Guang-hua, GAO Ya-chen. Mid-infrared plasmon regulation based on graphene nanoribbons[J]. Chinese Optics, 2020, 13(3): 627-636. doi: 10.3788/CO.2019-0185

Citation:

HAN Jing, GAO Yang, JIAO Wei-yan, FAN Guang-hua, GAO Ya-chen. Mid-infrared plasmon regulation based on graphene nanoribbons[J].Chinese Optics, 2020, 13(3): 627-636.doi:10.3788/CO.2019-0185

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Mid-infrared plasmon regulation based on graphene nanoribbons

doi:10.3788/CO.2019-0185

1.
College of Electronic Engineering, Heilongjiang University, Harbin 150080, China
2.
College of Science, Heilongjiang Institute of Technology, Harbin 150050, China
3.
College of Physics, Harbin Institute of Technology, Harbin 150001, China

Funds:Supported by Natural Scientific Foundation of Heilongjiang Province (No. F2018027, No.LH2019F047)

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Author Bio:
HAN Jing (1980—), female, born in Tianjin. She is a master and lecturer. She obtained her bachelor’s degree and master’s degree from Harbin Normal University in 2003 and 2006 respectively. She is mainly engaged in the research of micro-nano optics. E-mail:hanjing1980@163.com
GAO Ya-chen (1969—), male, born in Chaoyang City, Liaoning Province. He is a doctor, professor and doctoral supervisor. He obtained his bachelor’s degree from Liaoning Normal University in 1992, and his master’s and doctor’s degrees from Harbin Institute of Technology in 2001 and 2005 respectively. He is mainly engaged in the research of nonlinear optical materials, laser spectroscopy, nano-photonics and other fields. E-mail:gaoyachen@hlju.edu.cn
Corresponding author:gaoyachen@hlju.edu.cn
Received Date:17 Sep 2019
Rev Recd Date:21 Oct 2019
Publish Date:01 Jun 2020

Abstract

Abstract

Surface plasmon can be produced in graphene in the mid-infrared and terahertz waveband regimes, and the regulation for surface plasmon can be achieved by a reasonable design. On the basis of above, a resonant tunable structure was designed. By depositing single layers of graphene ribbons with different widths on a dielectric substrate, discontinuities in nanoscale were introduced, thereby effectively controlling the interaction of graphene with light. The spectral and electromagnetic field distributions of the structure were theoretically studied using the finite difference time domain method. The results showed that when the designed structure was coupled with the incident light, there would be multiple resonance enhanced absorption peaks. By changing the number, width and distance of the graphene ribbons in each period, the number, position, intensity of the resonance peak can be controlled. In addition, the Fermi energy level of graphene can be changed by applying different bias voltages, so the position and intensity of resonance peak can be adjusted dynamically. Therefore, with this structure graphene plasmon resonance can be regulated over a wide spectral range. This study provides a theoretical basis for the design of the graphene-based sensors, filters and absorbers in infrared regime.
- graphene ribbons,
- surface plasmon,
- Finite Difference Time Domain (FDTD),
- Fabry-Perot model,
- Fermi level

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References (27)

References

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