Optimized Distributed Feedback Dye Laser Sensor for Real-Time Monitoring of Small Molecule Diffusion

Christoph Vannahme, Cameron Smith, Martin Dufva, Anders Kristensen

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    Abstract

    Nanoimprinted distributed feedback dye laser sensors featuring multilayer slab waveguides are presented. A simple yet precise analytical model is used to optimize the lasers in order to give highest sensitivity and it is found that the thickness of a high index TiO2 top layer is the most important parameter for optimization. Using such laser sensors in an imaging spectroscopy setup, real-time label-free monitoring of sugar molecule diffusion in water is demonstrated. This method could potentially pave the way towards the analysis of small molecule diffusion in various media, e.g. protein signaling processes in tissue.

    Original languageEnglish
    Title of host publicationProceedings of ECIO-MOC 2014
    Number of pages2
    Publication date2014
    Publication statusPublished - 2014
    Eventthe European Conference on Integrated Optics (ECIO 17th) and the MicroOptics Conference (MOC 19th) - Saint Jean d'Angely Campus, Nice, France
    Duration: 24 Jun 201427 Jun 2014
    Conference number: 17/19
    http://www.atout-org.com/eciomoc2014/

    Conference

    Conferencethe European Conference on Integrated Optics (ECIO 17th) and the MicroOptics Conference (MOC 19th)
    Number17/19
    LocationSaint Jean d'Angely Campus
    CountryFrance
    CityNice
    Period24/06/201427/06/2014
    Internet address

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