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): 677-681.
| Citation:
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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): 677-681.
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Propagation properties of a dielectric-loaded hybrid surface plasmonic waveguide
- 1.
Institute of Electrical Engineering,Yanshan University,Qinhuangdao 066004,China;
- 2.
College of Electronic Engineering,Guangxi Normal University,Guilin 541004,China
- Received Date: 2014-06-05
- Rev Recd Date:
2014-07-03
- Publish Date:
2015-02-25
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Abstract
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/um 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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