A model for an Optical Ring Micro resonator towards Nanoparticle Detection

Ahmeti F., Teker K.

11th Annual TechConnect World Innovation Conference and Expo, Held Jointly with the 20th Annual Nanotech Conference and Expo, and the 2017 National SBIR/STTR Conference, Washington, United States Of America, 14 - 17 May 2017, vol.3, pp.254-257 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 3
  • City: Washington
  • Country: United States Of America
  • Page Numbers: pp.254-257


In this work, we have used an optical microring-based resonator, and developed a Multiphysics finite element model of this resonator for ultrasensitive biomolecule and nanoparticle detection. We applied an input tunable laser light at the input node of the straight form waveguide at a wavelength of 1.55 μm and monitored the transmitted light at the output node. During this process, we recorded the transmission spectrum and located the exact position of the resonance wavelengths shifted towards higher wavelength value (red shift). A linear correlation was observed, between increasing the radius of the microring and the resonance wavelength red shift. Additionally, we have shown that we could detect resonance value shifts for very small changes in the microring radius, as low as 10 nm.