Near-Infrared Absorption Enhancement Mechanism Investigations of Deep-Trench Silicon Microstructures Covered with Gold Films

@article{Liu2016NearInfraredAE,
  title={Near-Infrared Absorption Enhancement Mechanism Investigations of Deep-Trench Silicon Microstructures Covered with Gold Films},
  author={Xiaoyi Dr Liu and Jinsong Gao and Haigui Yang and Hai Liu and Xiaoyi Wang and Zhenfeng Shen},
  journal={Plasmonics},
  year={2016},
  volume={11},
  pages={1019-1024}
}
We design a deep-trench microstructure covered with thin gold films to enhance near-infrared absorption of silicon material. This deep-trench microstructure exhibits a much higher absorption compared with plane nanoantenna arrays. We investigate its absorption enhancement in detail and find that the trench-shaped plasmonic waveguide greatly contributes an absorption enhancement by concentrating light effectively. Further, we clarify the influence of both trench depth and gold films covering on… CONTINUE READING

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