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Microwave Inspired Easy-to-Design Nano-Couplers for Hybrid Photonic-Plasmonic Waveguide Structures

Hodaei, Hossein | 2013

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 44327 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Mehrany, Khashayar
  7. Abstract:
  8. Potential of plasmonic waveguide structures to confine light in sub-wavelength scales attracted many attentions in recent years. Among these structures planar metal-insulator-metal waveguide and plasmonic slot waveguide are more promising. That is because of their easy fabrication process along with their various reported applications. However, there are some obstacles in the path of developing plasmonic integrated circuits, among whichhigh propagation loss can be named as the most important. To solve this issue, photonic waveguides can be used as the lossless interconnections between small footprint plasmonic components on optical chips. Therefore, application of plasmonic slot waveguide devices in photonic circuits is achievable with highly efficient coupling to photonic components. Till now, some efforts have been reported in order to couple power between plasmonic waveguides and photonic waveguides. Although the power efficiency has been considerably enhanced, these works exploit optimization and numerical simulation. Due to nanometer dimensions of these structures, implementation of numerical methods consumes too much time and resources. Thus more efficient and faster methods are required to address this problem. Unique resemblance between plasmonic and microwave waveguides makes circuit modeling and microwave techniques an interesting substitution for numerical based approaches. Using these methods, here we try to increase power coupling in plasmonic-photonic structures
  9. Keywords:
  10. Circuit Model ; Microwave ; Optical Waveguides ; Nanoplasmonics

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