Grating couplers integrated on Mach-Zehnder interferometric biosensors operating in the visible range
Duval, Daphné (Institut Català de Nanociència i Nanotecnologia)
Osmond, Johann (Institute of Photonic Sciences)
Dante, Stefania (Institut Català de Nanociència i Nanotecnologia)
Dominguez, Carlos (Institut de Microelectrònica de Barcelona)
Lechuga, Laura M (Institut Català de Nanociència i Nanotecnologia)
Date: |
2013 |
Abstract: |
We present the design, fabrication, and characterization of submicronic grating couplers integrated on SiN rib waveguide Mach-Zehnder interferometers (MZIs) for biosensing applications working in the visible spectral range for both TE and TM polarizations. Depending on the waveguide structure, a maximum of 11. 5% of coupling efficiency has been experimentally obtained at 658 nm, while a limit of detection of 1. 6 × 10 in refractive index unit is achieved for the biosensor. These results represent an important milestone toward the achievement of a truly portable and multiplexed point-of-care platform using the integrated MZI sensor. |
Grants: |
Ministerio de Economía y Competitividad TEC2009-09380
|
Rights: |
Tots els drets reservats. |
Language: |
Anglès |
Document: |
Article ; recerca ; Versió publicada |
Subject: |
Gratings ;
Couplings ;
Couplers ;
Biosensors ;
Optical waveguides ;
Sensitivity |
Published in: |
IEEE photonics journal, Vol. 5, Issue 2 (April 2013) , art. 6476622, ISSN 1943-0655 |
DOI: 10.1109/JPHOT.2013.2251873
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Record created 2019-07-22, last modified 2023-10-01