Direct laser writing of optical biosensor based on photonic Floquet topological insulator for protein detection

Abhishek Kottaram Amrithanath, Heming Wei, Sridhar Krishnaswamy

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

Abstract

Photonic Floquet topological insulators (PFTI) allow scatter-free propagation of light along its edges. The PFTI of interest consists of helical waveguides arranged in a honeycomb lattice. When irradiated with an input beam on the edge of the PFTI, light propagates from one end of the waveguide-system to the other along the edges. The intensity and the final position of light is theoretically found to be dependent on the difference in the refractive indices of the core and cladding of the waveguides. For a system of helical-waveguides filled with a solvent, the effective refractive index of the system varies with the concentration of the analyte in the solvent and this can be measured by monitoring the position and intensity of the output-light. This paper discusses the design, principle, simulation and fabrication of such a PFTI based biosensor.

Original languageEnglish (US)
Title of host publicationFrontiers in Biological Detection
Subtitle of host publicationFrom Nanosensors to Systems XI
EditorsAmos Danielli, Benjamin L. Miller, Sharon M. Weiss
PublisherSPIE
ISBN (Electronic)9781510624320
DOIs
StatePublished - Jan 1 2019
EventFrontiers in Biological Detection: From Nanosensors to Systems XI 2019 - San Francisco, United States
Duration: Feb 3 2019Feb 4 2019

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume10895
ISSN (Print)1605-7422

Conference

ConferenceFrontiers in Biological Detection: From Nanosensors to Systems XI 2019
CountryUnited States
CitySan Francisco
Period2/3/192/4/19

Keywords

  • Direct laser writing
  • Floquet
  • Honeycomb
  • Scatter-free
  • Topological insulators

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Biomaterials
  • Radiology Nuclear Medicine and imaging

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