Single-mode porous silicon waveguide interferometers with unity confinement factors for ultra-sensitive surface adlayer sensing

Talukdar, Tahmid; Allen, Gabrielle; Kravchenko, Ivan I.; Ryckman, Judson

doi:10.1364/OE.27.022485

Title: Single-mode porous silicon waveguide interferometers with unity confinement factors for ultra-sensitive surface adlayer sensing

Abstract

Guided wave-optics has emerged as a promising platform for label free biosensing. However, device sensitivity toward surface-bound small molecules is directly limited by the evanescent interaction and low confinement factor with the active sensing region. Here, we report a mesoporous silicon waveguide design and inverse fabrication technique that resolves the evanescent field interaction limitation while achieving maximal transverse confinement factors and preserving single-mode operation. The waveguide sensors are characterized in a Fabry-Perot interferometer configuration and the ultra-high sensitivity to small molecule adlayers is demonstrated. We also identify dispersion to be a promising degree of freedom for exceeding the sensitivity limits predicted by the conventional non-dispersive effective medium theory.

Authors:

^[1]; Allen, Gabrielle ^[1];

^[2]; Ryckman, Judson ^[1]

Clemson Univ., SC (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Publication Date:: Tue Jul 23 00:00:00 EDT 2019

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1546510

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Optics Express

Additional Journal Information:: Journal Volume: 27; Journal Issue: 16; Journal ID: ISSN 1094-4087

Publisher:: Optical Society of America (OSA)

Country of Publication:: United States

Language:: English

Subject:: 47 OTHER INSTRUMENTATION

Citation Formats


                    Talukdar, Tahmid, Allen, Gabrielle, Kravchenko, Ivan I., and Ryckman, Judson. Single-mode porous silicon waveguide interferometers with unity confinement factors for ultra-sensitive surface adlayer sensing.  United States: N. p., 2019. 
Web.  doi:10.1364/OE.27.022485.

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                    Talukdar, Tahmid, Allen, Gabrielle, Kravchenko, Ivan I., & Ryckman, Judson. Single-mode porous silicon waveguide interferometers with unity confinement factors for ultra-sensitive surface adlayer sensing.  United States.  https://doi.org/10.1364/OE.27.022485

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                    Talukdar, Tahmid, Allen, Gabrielle, Kravchenko, Ivan I., and Ryckman, Judson. Tue .  
"Single-mode porous silicon waveguide interferometers with unity confinement factors for ultra-sensitive surface adlayer sensing".  United States.  https://doi.org/10.1364/OE.27.022485.  https://www.osti.gov/servlets/purl/1546510.

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@article{osti_1546510,

  title        = {Single-mode porous silicon waveguide interferometers with unity confinement factors for ultra-sensitive surface adlayer sensing},

  author       = {Talukdar, Tahmid and Allen, Gabrielle and Kravchenko, Ivan I. and Ryckman, Judson},

  abstractNote = {Guided wave-optics has emerged as a promising platform for label free biosensing. However, device sensitivity toward surface-bound small molecules is directly limited by the evanescent interaction and low confinement factor with the active sensing region. Here, we report a mesoporous silicon waveguide design and inverse fabrication technique that resolves the evanescent field interaction limitation while achieving maximal transverse confinement factors and preserving single-mode operation. The waveguide sensors are characterized in a Fabry-Perot interferometer configuration and the ultra-high sensitivity to small molecule adlayers is demonstrated. We also identify dispersion to be a promising degree of freedom for exceeding the sensitivity limits predicted by the conventional non-dispersive effective medium theory.},

  doi          = {10.1364/OE.27.022485},

  journal      = {Optics Express},

  number       = 16,

  volume       = 27,

  place        = {United States},

  year         = {Tue Jul 23 00:00:00 EDT 2019},

  month        = {Tue Jul 23 00:00:00 EDT 2019}

}

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Title: Single-mode porous silicon waveguide interferometers with unity confinement factors for ultra-sensitive surface adlayer sensing

Abstract

Citation Formats

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Biosensing Using Porous Silicon Double-Layer Interferometers: Reflective Interferometric Fourier Transform Spectroscopy journal, August 2005

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Surface sensing with integrated optical waveguides: a design guideline text, January 2018

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Sensors and Biosensors for the Determination of Small Molecule Biological Toxins
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Label-Free Biosensor Arrays Based on Silicon Ring Resonators and High-Speed Optical Scanning Instrumentation
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Mid-infrared plasmonic biosensing with graphene
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Nanoscale porous silicon waveguide for label-free DNA sensing
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Porous silicon ring resonator for compact, high sensitivity biosensing applications
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Experimental study of the sensitivity of a porous silicon ring resonator sensor using continuous in-flow measurements
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Optimization of porous silicon waveguide design for micro-ring resonator sensing applications
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A Porous Silicon-Based Optical Interferometric Biosensor
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Photonic crystal nanobeam biosensors based on porous silicon
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Direct Imprinting of Porous Substrates: A Rapid and Low-Cost Approach for Patterning Porous Nanomaterials
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First-principle derivation of gain in high-index-contrast waveguides
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journal, January 2011

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Birefringent porous silicon membranes for optical sensing
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journal, May 2018

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