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arXiv · 1412.4476

Influence of surface termination on inverse Goos-Hänchen shift of negatively refractive photonic crystals

Jinbing Hu·Binming Liang·Jiabi Chen·Xiaoshu Cai·Qiang Jiang·Songlin Zhuang
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Abstract

The effect of surface termination on the inverse Goos Hanchen (GH) shift of two dimensional (2D) negatively refractive photonic crystal (NRPhC) containing air holes arranged in hexagonal lattice in a dielectric background is investigated for TM polarization. Results show that the magnitude of the inverse GH shift of 2DNRPhC strongly depends on surface termination even for an incident beam with a fixed frequency and incidence angle. Further study by calculating the dispersion of surface mode of 2D-NRPhC as a function of surface termination reveals that 2DNRPhC presents large inverse Goos Hanchen shift at those terminations where surface mode is excited, that is, large inverse Goos-Hanchen shift originates from backward surface mode of 2DNRPhC. In addition, the coupling coefficient of incident field into the field of surface mode as a function of surface termination is studied and demonstrates above results. This paper provides technical information regarding the combination of various functional photonic elements in the design of integrated optical circuits.

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Jinbing Hu, Binming Liang, Jiabi Chen, Xiaoshu Cai, Qiang Jiang, Songlin Zhuang. 2015-10-09. Influence of surface termination on inverse Goos-Hänchen shift of negatively refractive photonic crystals. https://doi.org/10.1088/2040-8978%2F18%2F7%2F075103

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