ArticleOptics express2017
Improving the detection limit for on-chip photonic sensors based on subwavelength grating racetrack resonators.
Article in Optics express, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Dispersion Engineering and Sensitivity Enhancement in Photonic Crystal Waveguide Sensors: Current Advances and Emerging Challenges.Sensors (Basel, Switzerland) · 2026Review
- Zero-crosstalk silicon photonic refractive index sensor with subwavelength gratings.Nano convergence · 2024Article
- Monolithic Electronic-Biophotonic System-on-Chip for Label-Free Real-Time Molecular Sensing.IEEE journal of solid-state circuits · 2024Article
- Ultrasensitive Silicon Photonic Refractive Index Sensor Based on Hybrid Double Slot Subwavelength Grating Microring Resonator.Sensors (Basel, Switzerland) · 2024Article
- Design and Modeling of a Fully Integrated Microring-Based Photonic Sensing System for Liquid Refractometry.Sensors (Basel, Switzerland) · 2022Article
- A Design Method of Two-Dimensional Subwavelength Grating Filter Based on Deep Learning Series Feedback Neural Network.Sensors (Basel, Switzerland) · 2022Article
- An Optimization Framework for Silicon Photonic Evanescent-Field Biosensors Using Sub-Wavelength Gratings.Biosensors · 2022Article
- On-chip complex refractive index detection at multiple wavelengths for selective sensing.Scientific reports · 2022Article
- Fast, accurate, point-of-care COVID-19 pandemic diagnosis enabled through advanced lab-on-chip optical biosensors: Opportunities and challenges.Applied physics reviews · 2021Review
- Polymer Optical Waveguide Grating-Based Biosensor to Detect Effective Drug Concentrations of Ginkgolide A for Inhibition of PMVEC Apoptosis.Biosensors · 2021Article
- Progress of infrared guided-wave nanophotonic sensors and devices.Nano convergence · 2020Review
- Optimizing the Limit of Detection of Waveguide-Based Interferometric Biosensor Devices.Sensors (Basel, Switzerland) · 2019Article
- Silicon Photonic Biosensors Using Label-Free Detection.Sensors (Basel, Switzerland) · 2018Review
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Authors and funding
7 authors.
Funding
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Abstract
Compared to the conventional strip waveguide microring resonators, subwavelength grating (SWG) waveguide microring resonators have better sensitivity and lower detection limit due to the enhanced photon-analyte interaction. As sensors, especially biosensors, are usually used in absorptive ambient environment, it is very challenging to further improve the detection limit of the SWG ring resonator by simply increasing the sensitivity. The high sensitivity resulted from larger mode-analyte overlap also brings significant absorption loss, which deteriorates the quality factor of the resonator. To explore the potential of the SWG ring resonator, we theoretically and experimentally optimize an ultrasensitive transverse magnetic mode SWG racetrack resonator to obtain maximum quality factor and thus lowest detection limit. A quality factor of 9800 around 1550 nm and sensitivity of 429.7 ± 0.4nm/RIU in water environment are achieved. It corresponds to a detection limit (λ/S·Q) of 3.71 × 10
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