Hybrid grating reflector with high reflectivity and broad bandwidth.

@article{Taghizadeh2014HybridGR,
  title={Hybrid grating reflector with high reflectivity and broad bandwidth.},
  author={Alireza Taghizadeh and Gyeong Cheol Park and Jesper M{\o}rk and Il-Sug Chung},
  journal={Optics express},
  year={2014},
  volume={22 18},
  pages={
          21175-84
        }
}
We suggest a new type of grating reflector denoted hybrid grating (HG) which shows large reflectivity in a broad wavelength range and has a structure suitable for realizing a vertical cavity laser with ultra-small modal volume. The properties of the grating reflector are investigated numerically and explained. The HG consists of an un-patterned III-V layer and a Si grating. The III-V layer has a thickness comparable to the grating layer, introduces more guided mode resonances and significantly… 
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