Stimulus-Responsive Light Coupling and Modulation with Nanofiber Waveguide Junctions
We report a systematic study of light coupling at junctions of overlapping SnO2 nanofiber waveguides (WGs) as a function of gap separation and guided wavelength. The junctions were assembled on silica substrates using micromanipulation techniques and the gap separation was controlled by depositing t...
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| Veröffentlicht in: | Nano letters 2012-04, Vol.12 (4), p.1905-1911 |
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| container_end_page | 1911 |
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| container_issue | 4 |
| container_start_page | 1905 |
| container_title | Nano letters |
| container_volume | 12 |
| creator | Yoon, Ilsun Kim, Kanguk Baker, Sarah E Heineck, Daniel Esener, Sadik C Sirbuly, Donald J |
| description | We report a systematic study of light coupling at junctions of overlapping SnO2 nanofiber waveguides (WGs) as a function of gap separation and guided wavelength. The junctions were assembled on silica substrates using micromanipulation techniques and the gap separation was controlled by depositing thin self-assembled polyelectrolyte coatings at the fiber junctions. We demonstrate that the coupling efficiency is strongly dependent on the gap separation, showing strong fluctuations (0.1 dB/nm) in the power transfer when the separation between nanofibers changes by as little as 2 nm. Experimental results correlate well with numerical simulations using three-dimensional finite-difference time-domain techniques. To demonstrate the feasibility of using coupled nanofiber WGs to modulate light, we encased the junctions in an environment-responsive matrix and exposed the junctions to gaseous vapor. The nanofiber junctions show an ∼95% (or ∼80%) modulation of the guided 450 nm (or 510 nm) light upon interaction with the gaseous molecules. The results reveal a unique nanofiber-based sensing scheme that does not require a change in the refractive index to detect stimuli, suggesting these structures could play important roles in localized sensing devices including force-based measurements or novel chemically induced light modulators. |
| doi_str_mv | 10.1021/nl2043024 |
| format | Article |
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The junctions were assembled on silica substrates using micromanipulation techniques and the gap separation was controlled by depositing thin self-assembled polyelectrolyte coatings at the fiber junctions. We demonstrate that the coupling efficiency is strongly dependent on the gap separation, showing strong fluctuations (0.1 dB/nm) in the power transfer when the separation between nanofibers changes by as little as 2 nm. Experimental results correlate well with numerical simulations using three-dimensional finite-difference time-domain techniques. To demonstrate the feasibility of using coupled nanofiber WGs to modulate light, we encased the junctions in an environment-responsive matrix and exposed the junctions to gaseous vapor. The nanofiber junctions show an ∼95% (or ∼80%) modulation of the guided 450 nm (or 510 nm) light upon interaction with the gaseous molecules. 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The junctions were assembled on silica substrates using micromanipulation techniques and the gap separation was controlled by depositing thin self-assembled polyelectrolyte coatings at the fiber junctions. We demonstrate that the coupling efficiency is strongly dependent on the gap separation, showing strong fluctuations (0.1 dB/nm) in the power transfer when the separation between nanofibers changes by as little as 2 nm. Experimental results correlate well with numerical simulations using three-dimensional finite-difference time-domain techniques. To demonstrate the feasibility of using coupled nanofiber WGs to modulate light, we encased the junctions in an environment-responsive matrix and exposed the junctions to gaseous vapor. The nanofiber junctions show an ∼95% (or ∼80%) modulation of the guided 450 nm (or 510 nm) light upon interaction with the gaseous molecules. The results reveal a unique nanofiber-based sensing scheme that does not require a change in the refractive index to detect stimuli, suggesting these structures could play important roles in localized sensing devices including force-based measurements or novel chemically induced light modulators.</description><subject>Catalytic methods</subject><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Dimethylpolysiloxanes - chemistry</subject><subject>Exact sciences and technology</subject><subject>Joining</subject><subject>Light</subject><subject>Materials science</subject><subject>Mathematical analysis</subject><subject>Mathematical models</subject><subject>Methods of nanofabrication</subject><subject>Modulation</subject><subject>Nanocrystalline materials</subject><subject>Nanofibers - chemistry</subject><subject>Nanoscale materials and structures: fabrication and characterization</subject><subject>Nanostructure</subject><subject>Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation</subject><subject>Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures</subject><subject>Physics</subject><subject>Self-assembly</subject><subject>Sensing devices</subject><subject>Separation</subject><subject>Silicon Dioxide - chemistry</subject><subject>Three dimensional</subject><subject>Tin Compounds - chemistry</subject><subject>Waveguides</subject><issn>1530-6984</issn><issn>1530-6992</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp90E1P3DAQBmCroip04cAfqHKp2h4CHtuJ42O16gfVAlIL4hjNOvauV4mdxvFW_fcEsSwXxGnm8OgdzUvIKdAzoAzOfcuo4JSJN-QICk7zUil2sN8rcUjex7ihlCpe0HfkkDEhFDB5RG7-jK5LbYr5bxP74KPbmmzhVusxm4fUt86vMvRNdhma1OLogs_-uXGdXaEP1i3NkN3h1qySa0z2K3n9IOIxeWuxjeZkN2fk9vu3m_nPfHH942L-dZEjl3LMNepGo6oayZURoAElKCsV51Zyq5asohQayzgIWpaoBRRaSuQFiMo2CviMfHrM7YfwN5k41p2L2rQtehNSrJXiCuj05yQ_vypBlowWrGJiol8eqR5CjIOxdT-4Dof_NdD6oe56X_dkP-xi07IzzV4-9TuBjzuAUWNrB_TaxWdXSFUWUD071LHehDT4qbcXDt4Dc-uSMA</recordid><startdate>20120411</startdate><enddate>20120411</enddate><creator>Yoon, Ilsun</creator><creator>Kim, Kanguk</creator><creator>Baker, Sarah E</creator><creator>Heineck, Daniel</creator><creator>Esener, Sadik C</creator><creator>Sirbuly, Donald J</creator><general>American Chemical Society</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><scope>7X8</scope></search><sort><creationdate>20120411</creationdate><title>Stimulus-Responsive Light Coupling and Modulation with Nanofiber Waveguide Junctions</title><author>Yoon, Ilsun ; Kim, Kanguk ; Baker, Sarah E ; Heineck, Daniel ; Esener, Sadik C ; Sirbuly, Donald J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a377t-cacdca98d739e41c1a719f7933f73f9b28001df2314066ac415c77a35148fd913</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Catalytic methods</topic><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Dimethylpolysiloxanes - chemistry</topic><topic>Exact sciences and technology</topic><topic>Joining</topic><topic>Light</topic><topic>Materials science</topic><topic>Mathematical analysis</topic><topic>Mathematical models</topic><topic>Methods of nanofabrication</topic><topic>Modulation</topic><topic>Nanocrystalline materials</topic><topic>Nanofibers - chemistry</topic><topic>Nanoscale materials and structures: fabrication and characterization</topic><topic>Nanostructure</topic><topic>Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation</topic><topic>Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures</topic><topic>Physics</topic><topic>Self-assembly</topic><topic>Sensing devices</topic><topic>Separation</topic><topic>Silicon Dioxide - chemistry</topic><topic>Three dimensional</topic><topic>Tin Compounds - chemistry</topic><topic>Waveguides</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yoon, Ilsun</creatorcontrib><creatorcontrib>Kim, Kanguk</creatorcontrib><creatorcontrib>Baker, Sarah E</creatorcontrib><creatorcontrib>Heineck, Daniel</creatorcontrib><creatorcontrib>Esener, Sadik C</creatorcontrib><creatorcontrib>Sirbuly, Donald J</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>MEDLINE - Academic</collection><jtitle>Nano letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yoon, Ilsun</au><au>Kim, Kanguk</au><au>Baker, Sarah E</au><au>Heineck, Daniel</au><au>Esener, Sadik C</au><au>Sirbuly, Donald J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Stimulus-Responsive Light Coupling and Modulation with Nanofiber Waveguide Junctions</atitle><jtitle>Nano letters</jtitle><addtitle>Nano Lett</addtitle><date>2012-04-11</date><risdate>2012</risdate><volume>12</volume><issue>4</issue><spage>1905</spage><epage>1911</epage><pages>1905-1911</pages><issn>1530-6984</issn><eissn>1530-6992</eissn><abstract>We report a systematic study of light coupling at junctions of overlapping SnO2 nanofiber waveguides (WGs) as a function of gap separation and guided wavelength. The junctions were assembled on silica substrates using micromanipulation techniques and the gap separation was controlled by depositing thin self-assembled polyelectrolyte coatings at the fiber junctions. We demonstrate that the coupling efficiency is strongly dependent on the gap separation, showing strong fluctuations (0.1 dB/nm) in the power transfer when the separation between nanofibers changes by as little as 2 nm. Experimental results correlate well with numerical simulations using three-dimensional finite-difference time-domain techniques. To demonstrate the feasibility of using coupled nanofiber WGs to modulate light, we encased the junctions in an environment-responsive matrix and exposed the junctions to gaseous vapor. The nanofiber junctions show an ∼95% (or ∼80%) modulation of the guided 450 nm (or 510 nm) light upon interaction with the gaseous molecules. 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| ispartof | Nano letters, 2012-04, Vol.12 (4), p.1905-1911 |
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| subjects | Catalytic methods Condensed matter: electronic structure, electrical, magnetic, and optical properties Cross-disciplinary physics: materials science rheology Dimethylpolysiloxanes - chemistry Exact sciences and technology Joining Light Materials science Mathematical analysis Mathematical models Methods of nanofabrication Modulation Nanocrystalline materials Nanofibers - chemistry Nanoscale materials and structures: fabrication and characterization Nanostructure Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures Physics Self-assembly Sensing devices Separation Silicon Dioxide - chemistry Three dimensional Tin Compounds - chemistry Waveguides |
| title | Stimulus-Responsive Light Coupling and Modulation with Nanofiber Waveguide Junctions |
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