Chirped-Disordered Topological Nanophotonic Resonator for Improved Electric Field Confinement

Amit Kumar Goyal, Diptimayee Dash, Jasmine Saini, Yehia Massoud

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this manuscript, a disordered topological nanophotonic resonator structure has been proposed for improved electric field confinement. The topological effect is realized by connecting two photonic crystal (PhC) structures having overlapping bandgaps and opposite Zak phase. Further, an exponential graded refractive index profile is used to modify the dispersion characteristic of the device. This results in the confinement of a topological edge state at 1546nm wavelength. The structural performance is compared with the conventional step-index resonator and step-index topological resonator. The topological structure shows a 136% higher electric field intensity of confined resonating mode. The proposed graded topological structure results in a 135% higher average sensitivity than the conventional FP-cavity structure and 24% higher than the step-index topological structure.

Original languageEnglish
Title of host publication2023 IEEE 23rd International Conference on Nanotechnology, NANO 2023
PublisherIEEE Computer Society
Pages998-1001
Number of pages4
ISBN (Electronic)9798350333466
DOIs
Publication statusPublished - 2023
Event23rd IEEE International Conference on Nanotechnology, NANO 2023 - Jeju City, Korea, Republic of
Duration: 02-07-202305-07-2023

Publication series

NameProceedings of the IEEE Conference on Nanotechnology
Volume2023-July
ISSN (Print)1944-9399
ISSN (Electronic)1944-9380

Conference

Conference23rd IEEE International Conference on Nanotechnology, NANO 2023
Country/TerritoryKorea, Republic of
CityJeju City
Period02-07-2305-07-23

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Electrical and Electronic Engineering
  • Materials Chemistry
  • Condensed Matter Physics

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