Enhancing the Performance of Distributed Feedback Dye Lasers and Plasmonic V-grooves for Lab-on-a-chip Systems

Cameron Smith

    Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review


    The ability to perform laboratory operations in compact systems is not only advantageous for the development of diagnostics tools and their production, but also provides unique opportunities to explore the natural world on the micro- and nanoscale. To this end, we focus on two optical schemes: 1) polymer-based distributed feedback (DFB) dye lasers, and 2) plasmonic V-grooves. Regarding the first, DFB dye lasers are well suited to serve as compact, minimal analyte volume and highly sensitive refractive index sensors, where changes occurring in an analyte result in readily measurable shifts of the laser emission wavelength. We provide a framework for designing optimized DFB laser sensors comprising a thin TiO2 guiding layer. Regarding the second, plasmonic V-grooves offer a means to control the trade-off between e-field confinement and propagation length by varying the V-shape profile, opening new prospects for unobtrusive particle and single molecule manipulation. We demonstrate a broad capability to tailor the properties of the plasmonic modes by subtly tuning the underlying Silicon V-groove geometry using conventional SiO2 growth. The approaches of 1) and 2) are considered with respect to the advantages they bring to lab-on-a-chip systems.
    Original languageEnglish
    Publication date2013
    Number of pages1
    Publication statusPublished - 2013
    EventLab-on-a-Chip World Congress - San Diego, CA, United States
    Duration: 12 Sept 201313 Sept 2013


    ConferenceLab-on-a-Chip World Congress
    Country/TerritoryUnited States
    CitySan Diego, CA


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