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Title: Porous silicon ring resonator for compact, high sensitivity biosensing applications

Journal Article · · Optics Express
DOI:https://doi.org/10.1364/OE.23.007111· OSTI ID:1193482

A ring resonator is patterned on a porous silicon slab waveguide to produce a compact, high quality factor biosensor with a large internal surface area available for enhanced recognition of biological and chemical molecules. The porous nature of the ring resonator allows molecules to directly interact with the guided mode. Quality factors near 10,000 were measured for porous silicon ring resonators with a radius of 25 μm. A bulk detection sensitivity of 380 nm/RIU was measured upon exposure to salt water solutions. Specific detection of nucleic acid molecules was demonstrated with a surface detection sensitivity of 4 pm/nM.

Research Organization:
Vanderbilt Univ., Nashville, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC); National Science Foundation (NSF); US Army Research Office (ARO)
Contributing Organization:
Center for Nanophase Materials Sciences; Vanderbilt Institute of Nanoscale Science and Engineering
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1193482
Journal Information:
Optics Express, Vol. 23, Issue 6; ISSN 1094-4087
Publisher:
Optical Society of America (OSA)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 75 works
Citation information provided by
Web of Science

References (25)

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Cited By (15)

Towards next-generation label-free biosensors: recent advances in whispering gallery mode sensors journal January 2017
Theoretical investigation of Vernier effect based sensors with hybrid porous silicon-polymer optical waveguides journal April 2017
Highly sensitive refractive index sensor based on hybrid plasmonic waveguide microring resonator journal August 2018
Bloch surface wave ring resonator based on porous silicon journal July 2019
Single-mode porous silicon waveguide interferometers with unity confinement factors for ultra-sensitive surface adlayer sensing journal January 2019
Electrochemical nanoimprinting of silicon journal May 2019
Optical sensors based on polymeric nanofibers layers created by electrospinning journal January 2018
Optimization of porous silicon waveguide design for micro-ring resonator sensing applications journal June 2018
Real-Time and In-Flow Sensing Using a High Sensitivity Porous Silicon Microcavity-Based Sensor journal December 2017
Advances in Porous Silicon-Based Nanomaterials for Diagnostic and Therapeutic Applications journal October 2018
Slow light enhanced bio sensing properties of silicon sensors journal October 2019
Nanosilicon-Based Composites for (Bio)sensing Applications: Current Status, Advantages, and Perspectives journal September 2019
Optical Refractive Index Sensors with Plasmonic and Photonic Structures: Promising and Inconvenient Truth journal February 2019
Optical Biosensors Based on Silicon-On-Insulator Ring Resonators: A Review journal January 2019
Mode-locked self-pumping and squeezing photons model in a nonlinear micro-ring resonator journal August 2018

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