Design optimization of a single-mode microring resonator for label-free detection of biomarkers within a tunable spectral range of 2 nm

Prabodh Panindre, N. Susan Mousavi, Sunil Kumar

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

Abstract

This computational parametric study analyzes the effect of geometrical design parameters of a microring resonator on its optical characteristics with the goal to optimize its performance for label-free detection of biomarkers. Electromagnetic frequency domain analysis was performed using finite element numerical technique for the microring resonator. Effect of the width of feed and pickup waveguides, the coupling gap between the waveguide and microring, and the outer radius of microring on the quality factor were analyzed and quantified for a narrow operational range of wavelength between 1309-1311 nm. The computational simulation showed that these parameters play an important role in avoiding the loss of electromagnetic field, while increasing the effective circulation of energy in the resonator, the ability to achieve multiple single-mode resonances within certain wavelength bandwidth, and the quality of output signal for detection. As a result, the quality factor was enhanced by an order of magnitude with the obtained optimum values of waveguide width, coupling gap, and microring radius without changing the material of resonator or waveguide, and the medium surrounding the resonator. The ability to optically detect a nanoparticle representing a cell vesicle was demonstrated. This enhanced quality factor of the resonator will allow highly sensitive and rapid detection of biomarkers and measurement of their size.

Original languageEnglish (US)
Title of host publicationBiomedical Imaging and Sensing Conference
PublisherSPIE
Volume10711
ISBN (Electronic)9781510619791
DOIs
StatePublished - Jan 1 2018
EventBiomedical Imaging and Sensing Conference 2018 - Yokohama, Japan
Duration: Apr 25 2018Apr 27 2018

Other

OtherBiomedical Imaging and Sensing Conference 2018
CountryJapan
CityYokohama
Period4/25/184/27/18

Fingerprint

Microring Resonator
biomarkers
design optimization
Biomarkers
Single Mode
Resonator
Waveguide
Quality Factor
Labels
Resonators
resonators
Waveguides
Range of data
waveguides
Q factors
Radius
Wavelength
Frequency Domain Analysis
Computational Simulation
Vesicles

Keywords

  • geometric optical design
  • label-free biomolecular detection
  • microring resonator
  • Single-mode optical resonance
  • whispering gallery mode biosensor

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Design optimization of a single-mode microring resonator for label-free detection of biomarkers within a tunable spectral range of 2 nm. / Panindre, Prabodh; Susan Mousavi, N.; Kumar, Sunil.

Biomedical Imaging and Sensing Conference. Vol. 10711 SPIE, 2018. 1071126.

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

Panindre, P, Susan Mousavi, N & Kumar, S 2018, Design optimization of a single-mode microring resonator for label-free detection of biomarkers within a tunable spectral range of 2 nm. in Biomedical Imaging and Sensing Conference. vol. 10711, 1071126, SPIE, Biomedical Imaging and Sensing Conference 2018, Yokohama, Japan, 4/25/18. https://doi.org/10.1117/12.2318934
Panindre, Prabodh ; Susan Mousavi, N. ; Kumar, Sunil. / Design optimization of a single-mode microring resonator for label-free detection of biomarkers within a tunable spectral range of 2 nm. Biomedical Imaging and Sensing Conference. Vol. 10711 SPIE, 2018.
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