Infrared and Laser Engineering, Volume. 44, Issue 2, 677(2015)

Propagation properties of a dielectric-loaded hybrid surface plasmonic waveguide

Li Zhiquan1、*, Niu Liyong1, Yan Lei1, Zhu Jun1,2, Wang Zhibin1, and Zheng Wenying1
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  • 1[in Chinese]
  • 2[in Chinese]
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    In order to realize long propagation distance and achieve subwavelength mode confinement, a dielectric-loaded hybrid surface plasmonics waveguide with a nano-hole was designed, which was based on traditional dielectric-loaded surface plasmonics waveguide. The propagation properties and mode field distributions of this novel hybrid waveguide were studied using finite-difference time-domain(FDTD) method. The results show that the structure could strongly modulate the local field enhancement. Furthermore, the nano-hole was filled with gain medium which leads to a gain enhancement, and the propagation loss could be compensated. In short, adjusting the geometrical parameters can significantly improve the confinement of the SPPs fields and reduce the losses of the waveguide. It also shows that the transmission loss is up to -13 dB/μm in the case of d=44 nm. This surface plasmonics waveguide can be used for subwavelength optical confinement and applied to the field of photonic device integration and sensors.

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    Li Zhiquan, Niu Liyong, Yan Lei, Zhu Jun, Wang Zhibin, Zheng Wenying. Propagation properties of a dielectric-loaded hybrid surface plasmonic waveguide[J]. Infrared and Laser Engineering, 2015, 44(2): 677

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    Paper Information

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    Received: Jun. 5, 2014

    Accepted: Jul. 3, 2014

    Published Online: Jan. 26, 2016

    The Author Email: Zhiquan Li (lzq54@ysu.edu.cn)

    DOI:

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