Tuesday, February 9, 2016

Abstract-Self-imaging effect in photonic quasicrystal waveguides: Application to 3 dB power splitter for terahertz waves

  • a Department of Physics, Nanchang University, Nanchang 330031, China
  • b Institute for Advanced study, Nanchang University, Nanchang 330031, China

We report that self-imaging effect still can be achieved in photonic quasicrystal waveguides (PtQCWs) just as it does in photonic crystal waveguides. As a possible application of the results, a new kind of compact 3 dB PtQCWs-based power splitters based on this effect for terahertz waves with symmetric interference is presented and analyzed. The finite element method is used to calculate the distributions of stable-state electric field and evaluate transmission efficiency of these structures. The calculated results show that the proposed device provides a new compact model for exporting efficiently THz wave with a broad bandwidth to two channels averagely and can be extended to new designs of PtQCW devices.

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