• Chinese Journal of Lasers
  • Vol. 42, Issue 2, 217001 (2015)
Wang Jicheng*, Jiang Yalan, Wang Yueke, Liu Cheng, Tang Baojie, and Sun Lin
Author Affiliations
  • [in Chinese]
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    DOI: 10.3788/cjl201542.0217001 Cite this Article Set citation alerts
    Wang Jicheng, Jiang Yalan, Wang Yueke, Liu Cheng, Tang Baojie, Sun Lin. Directional Couplers Based on MIM Plasmonic Waveguide Stuctures[J]. Chinese Journal of Lasers, 2015, 42(2): 217001 Copy Citation Text show less

    Abstract

    The metal-insulator-metal (MIM) based bending waveguide structures with a quadrant ring resonator (QRR) are presented in theory. Those structures can control the directional propagation of plasmonic waves in waveguide cross junctions. The transmission of various wavelengths in straight waveguide with a quadrant ring resonator based on finite-different time-domain (FDTD) method is studied, and optical properties of the barrier thickness between quadrant ring resonator and communication waveguides are also studied. The simulation results demonstrate that the waveguide structure can achieve higher transmission, and achieve the filtering effects at the specific wavelength positions. In addition, three and four waveguide branches structures are proposed. The structures can obtain the effects of directional transmission of surface plasma wave in the waveguide bends, such as beam splitting, total reflection. The structures have the effects of strong beam binding, nanometer-scale transmission, and can solve the problem of signal transmission and reflection. Those design structures have an important application prospects in optical integration, communication, information processing.
    Wang Jicheng, Jiang Yalan, Wang Yueke, Liu Cheng, Tang Baojie, Sun Lin. Directional Couplers Based on MIM Plasmonic Waveguide Stuctures[J]. Chinese Journal of Lasers, 2015, 42(2): 217001
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