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Light confinement in low contrast slot waveguide structures investigated

  • Beihang University
  • National University of Sciences and Technology Pakistan

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

Abstract

The advent of slot waveguide structure has led the field of nano-photonics into an era, where maximum light can be confined inside low index slot guarded by high index slabs. Already in use slot waveguides (contrast ratio is 2.42) have two distinct properties over the conventional waveguides, i.e. high E-field amplitude, optical power, optical intensity in low index materials and a strong E-field confinement is localized to nanometer-size low index regions. We hereby propose a low contrast double slot waveguide structure (contrast ratio is 1.65); where low index slots comprising of air surrounded with high index glass slabs. The whole structure is based on substrate comprising of glass whereas cladding is of air. Novelty lies in showing high E-field amplitude, optical power, optical intensity and a strong E-field confinement in low index slot regions. Low contrast double slot structure usage in forming passive nano-devices had been verified by simulating a Y-branch coupler.

Original languageEnglish
Title of host publication2008 International Conference on Microwave and Millimeter Wave Technology Proceedings, ICMMT
Pages878-881
Number of pages4
DOIs
StatePublished - 2008
Event2008 International Conference on Microwave and Millimeter Wave Technology, ICMMT - Nanjing, China
Duration: 21 Apr 200824 Apr 2008

Publication series

Name2008 International Conference on Microwave and Millimeter Wave Technology Proceedings, ICMMT
Volume2

Conference

Conference2008 International Conference on Microwave and Millimeter Wave Technology, ICMMT
Country/TerritoryChina
CityNanjing
Period21/04/0824/04/08

Keywords

  • FDTD
  • Quasi-TE
  • SOI (silicon on insulator)
  • Slot waveguides

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