Fabrication tolerant chalcogenide mid-infrared multimode interference coupler design with applications for Bracewell nulling interferometry.

@article{Goldsmith2017FabricationTC,
  title={Fabrication tolerant chalcogenide mid-infrared multimode interference coupler design with applications for Bracewell nulling interferometry.},
  author={Harry-Dean Kenchington Goldsmith and Nick Cvetojevic and Michael P. Ireland and Stephen Madden},
  journal={Optics express},
  year={2017},
  volume={25 4},
  pages={3038-3051}
}
Understanding exoplanet formation and finding potentially habitable exoplanets is vital to an enhanced understanding of the universe. The use of nulling interferometry to strongly attenuate the central star's light provides the opportunity to see objects closer to the star than ever before. Given that exoplanets are usually warm, the 4 µm Mid-Infrared region is advantageous for such observations. The key performance parameters for a nulling interferometer are the extinction ratio it can attain… CONTINUE READING