In this work, we present a closed-form model of silicon-on-insulator (SOI) micro-ring resonators, based on the conformal transformation method. We compute the propagation characteristics of the whispering gallery modes at resonance wavelengths. The results of the proposed model are compared to numerical simulations based on the finite element method (FEM). The proposed method allows comparable accuracy to that of FEM simulations, with a significant reduction in computer resource requirements (time, speed, memory). To further validate the proposed modelling, we also compare the modelling results to experimental data. Finally, we model a ring resonator for biosensing applications. We compute the bulk refractive index sensitivity (S), the figure of merit (FOM) and the intrinsic limit of detection (ILOD). In the geometry under study, our proposed model predicts an ideal ILODof 3.73×10−4 refractive index units, which is 0.24 smaller than what has been reported in SOI optimized structure. These results validate the proposed modelling technique for the fast design of optical biosensors where both the figure of merit and the geometries can be optimized.

Fast analytical modelling of an SOI micro-ring resonator for bio-sensing application / Khozeymeh Sarbishe, Foroogh; Razaghi, Mohammad; Chalyan, Tatevik; Pavesi, Lorenzo. - In: JOURNAL OF PHYSICS D. APPLIED PHYSICS. - ISSN 0022-3727. - 2018:51(2018), pp. 285401.1-285401.12. [10.1088/1361-6463/aac865]

Fast analytical modelling of an SOI micro-ring resonator for bio-sensing application

Khozeymeh Sarbishe, Foroogh;Chalyan, Tatevik;Pavesi, Lorenzo
2018-01-01

Abstract

In this work, we present a closed-form model of silicon-on-insulator (SOI) micro-ring resonators, based on the conformal transformation method. We compute the propagation characteristics of the whispering gallery modes at resonance wavelengths. The results of the proposed model are compared to numerical simulations based on the finite element method (FEM). The proposed method allows comparable accuracy to that of FEM simulations, with a significant reduction in computer resource requirements (time, speed, memory). To further validate the proposed modelling, we also compare the modelling results to experimental data. Finally, we model a ring resonator for biosensing applications. We compute the bulk refractive index sensitivity (S), the figure of merit (FOM) and the intrinsic limit of detection (ILOD). In the geometry under study, our proposed model predicts an ideal ILODof 3.73×10−4 refractive index units, which is 0.24 smaller than what has been reported in SOI optimized structure. These results validate the proposed modelling technique for the fast design of optical biosensors where both the figure of merit and the geometries can be optimized.
51
Khozeymeh Sarbishe, Foroogh; Razaghi, Mohammad; Chalyan, Tatevik; Pavesi, Lorenzo
Fast analytical modelling of an SOI micro-ring resonator for bio-sensing application / Khozeymeh Sarbishe, Foroogh; Razaghi, Mohammad; Chalyan, Tatevik; Pavesi, Lorenzo. - In: JOURNAL OF PHYSICS D. APPLIED PHYSICS. - ISSN 0022-3727. - 2018:51(2018), pp. 285401.1-285401.12. [10.1088/1361-6463/aac865]
File in questo prodotto:
File Dimensione Formato  
Fast analytical modelling of an SOI micro-ring resonator for bio-sensing application.pdf

Solo gestori archivio

Tipologia: Versione editoriale (Publisher’s layout)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 2.47 MB
Formato Adobe PDF
2.47 MB Adobe PDF   Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/210928
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 16
  • ???jsp.display-item.citation.isi??? 14
social impact