Vertical coupling into a photonic crystal waveguide using band folding design

Reyhaneh Jannesari, Florian Dubois, Gerald Pühringer, Gerald Stocker, Andreas Tortschanoff, Thomas Grille, Bernhard Jakoby

Research output: Chapter in Book/Report/Conference proceedingConference proceedingspeer-review

Abstract

We propose a design for coupling light in/out of a hybrid photonic crystal surface plasmon polariton (PhC-SPP) waveguide using the band folding concept and demonstrate its feasibility. The finite-difference time-domain (FDTD) technique and rigorously coupled-wave analysis (RCWA) was used to study the absorption spectrum and dispersion diagram. By superimposing a second periodicity into the waveguide region, vertical diffraction is introduced. The proposed grating coupler couples light incident from free space directly into the PCWG modes without using any extra taper structure.
Original languageEnglish
Title of host publication2021 IEEE SENSORS
Number of pages4
Publication statusPublished - 2021

Fields of science

  • 202019 High frequency engineering
  • 202021 Industrial electronics
  • 202036 Sensor systems
  • 203017 Micromechanics
  • 202 Electrical Engineering, Electronics, Information Engineering
  • 202027 Mechatronics
  • 202028 Microelectronics
  • 202037 Signal processing

JKU Focus areas

  • Digital Transformation

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