• Corpus ID: 119466667

An silicon nanocrystal laser

  title={An silicon nanocrystal laser},
  author={Dongchen Wang and Chi Zhang and Pan Zeng and Wenjie Zhou and Lei Ma and Haotian Wang and Zhi-quan Zhou and Fei Hu and Shu-Yu Zhang and Ming Lu and Xiang Wu},
  journal={arXiv: Optics},
Silicon lasers have been the most challenging element for the monolithic integrated Si photonics. Here we report the first successful all-Si laser at room temperature based on silicon nanocrystals (Si NCs) with high optical gains. The active Si NC layer was made from hydrogen silsesquioxane (HSQ) that had undergone a phase separation annealing, followed by high-pressure hydrogen passivation. Using the nanoimprint technique, a second-order Bragg grating was made on the active layer as the… 

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