A photonics-based bessel beam launcher with an air-filled core and cylindrical bragg gratings in the cladding

HIGHLIGHTS

• What: The authors develop a photonics-based Bessel launcher characterized by a hollow-core waveguide surrounded by composed of concentric silicon rings each 375 nm thick. The authors explore three variations of this optical antenna featuring 6 16 and 32 ring arrays respectively. The authors report the 𝑆11 reflection coefficient of -33 dB and radiation efficiency of 0.01 dB. In Fig 6, the authors compare the power flow for 3, 6 and 16 ring launchers.
• Who: Cylindrical Bragg Gratings and collaborators from the Department of Electrical and Computer Engineering, New York University Abu Dhabi . . .
  

   

  

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