Performance of Grating Couplers Used in the Optical Switch Configuration
Surface plasmon resonance is an effect widely used for biosensing. Biosensors based on this effect operate in different configurations, including the use of diffraction gratings as couplers. Gratings are highly tunable and are easy to integrate into a fluidic system due to their planar configuration...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-11-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/23/22/9028 |
| _version_ | 1797457852805152768 |
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| author | Emilie Laffont Arnaud Valour Nicolas Crespo-Monteiro Pierre Berini Yves Jourlin |
| author_facet | Emilie Laffont Arnaud Valour Nicolas Crespo-Monteiro Pierre Berini Yves Jourlin |
| author_sort | Emilie Laffont |
| collection | DOAJ |
| description | Surface plasmon resonance is an effect widely used for biosensing. Biosensors based on this effect operate in different configurations, including the use of diffraction gratings as couplers. Gratings are highly tunable and are easy to integrate into a fluidic system due to their planar configuration. We discuss the optimization of plasmonic grating couplers for use in a specific sensor configuration based on the optical switch. These gratings present a sinusoidal profile with a high depth/period ratio. Their interaction with a <i>p</i>-polarized light beam results in two significant diffracted orders (the 0th and the −1st), which enable differential measurements cancelling noise due to common fluctuations. The gratings are fabricated by combining laser interference lithography with nanoimprinting in a process that is aligned with the challenges of low-cost mass production. The effects of different grating parameters such as the period, depth and profile are theoretically and experimentally investigated. |
| first_indexed | 2024-03-09T16:28:43Z |
| format | Article |
| id | doaj.art-b52c0cc458924152b4ca517317a7ee1b |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T16:28:43Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-b52c0cc458924152b4ca517317a7ee1b2023-11-24T15:05:04ZengMDPI AGSensors1424-82202023-11-012322902810.3390/s23229028Performance of Grating Couplers Used in the Optical Switch ConfigurationEmilie Laffont0Arnaud Valour1Nicolas Crespo-Monteiro2Pierre Berini3Yves Jourlin4School of Electrical Engineering and Computer Science, University of Ottawa, Ottawa, ON K1N 6N5, CanadaUniversité de Lyon, Laboratoire Hubert Curien, UMR CNRS 5516, 42000 Saint-Etienne, FranceUniversité de Lyon, Laboratoire Hubert Curien, UMR CNRS 5516, 42000 Saint-Etienne, FranceSchool of Electrical Engineering and Computer Science, University of Ottawa, Ottawa, ON K1N 6N5, CanadaUniversité de Lyon, Laboratoire Hubert Curien, UMR CNRS 5516, 42000 Saint-Etienne, FranceSurface plasmon resonance is an effect widely used for biosensing. Biosensors based on this effect operate in different configurations, including the use of diffraction gratings as couplers. Gratings are highly tunable and are easy to integrate into a fluidic system due to their planar configuration. We discuss the optimization of plasmonic grating couplers for use in a specific sensor configuration based on the optical switch. These gratings present a sinusoidal profile with a high depth/period ratio. Their interaction with a <i>p</i>-polarized light beam results in two significant diffracted orders (the 0th and the −1st), which enable differential measurements cancelling noise due to common fluctuations. The gratings are fabricated by combining laser interference lithography with nanoimprinting in a process that is aligned with the challenges of low-cost mass production. The effects of different grating parameters such as the period, depth and profile are theoretically and experimentally investigated.https://www.mdpi.com/1424-8220/23/22/9028surface plasmon resonanceplasmonic diffraction gratingoptical switchlaser interference lithographynanoimprinting |
| spellingShingle | Emilie Laffont Arnaud Valour Nicolas Crespo-Monteiro Pierre Berini Yves Jourlin Performance of Grating Couplers Used in the Optical Switch Configuration Sensors surface plasmon resonance plasmonic diffraction grating optical switch laser interference lithography nanoimprinting |
| title | Performance of Grating Couplers Used in the Optical Switch Configuration |
| title_full | Performance of Grating Couplers Used in the Optical Switch Configuration |
| title_fullStr | Performance of Grating Couplers Used in the Optical Switch Configuration |
| title_full_unstemmed | Performance of Grating Couplers Used in the Optical Switch Configuration |
| title_short | Performance of Grating Couplers Used in the Optical Switch Configuration |
| title_sort | performance of grating couplers used in the optical switch configuration |
| topic | surface plasmon resonance plasmonic diffraction grating optical switch laser interference lithography nanoimprinting |
| url | https://www.mdpi.com/1424-8220/23/22/9028 |
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