Leaky Waveguide Devices as Simple Sensitive Optical Detectors for use in μTAS Applications.

NJ Goddard, S Mohr, K Singh, R Holmes, K Joyce, JP Hulme, AF Bounaria, PR Fielden

    Research output: Contribution to journalArticle

    Abstract

    Leaky Waveguide Devices (LWD) are a class of optical waveguide where light is partially confined by reflection mechanisms other than total internal reflection (TIR). Since TIR is not used, the restriction that the waveguide must have a higher refractive index than the surrounding medium can be relaxed. It is then possible to provide lossy waveguiding in channels containing aqueous solutions. Since these reflection mechanisms always provide less than 100% reflectivity, light is gradually lost from the waveguide either by absorption or by radiative loss. Although this means that LWD cannot by used for long-distance light transmission, the typical propagation distances of a few millimetres to a few centimetres is sufficient for most μTAS sensing applications. A novel laminar-flow waveguide cytometer is described which uses Leaky Wave propagation to excite fluorescence.
    LanguageEnglish
    Pages27-3
    JournalProceedings of the MicroTECH 2000 Conference
    Volume1
    Publication statusPublished - 2000

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    waveguides
    detectors
    light transmission
    laminar flow
    optical waveguides
    wave propagation
    constrictions
    refractivity
    aqueous solutions
    reflectance
    fluorescence
    propagation

    Cite this

    Goddard, NJ., Mohr, S., Singh, K., Holmes, R., Joyce, K., Hulme, JP., ... Fielden, PR. (2000). Leaky Waveguide Devices as Simple Sensitive Optical Detectors for use in μTAS Applications. 1, 27-3.
    Goddard, NJ ; Mohr, S ; Singh, K ; Holmes, R ; Joyce, K ; Hulme, JP ; Bounaria, AF ; Fielden, PR. / Leaky Waveguide Devices as Simple Sensitive Optical Detectors for use in μTAS Applications. 2000 ; Vol. 1. pp. 27-3.
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    abstract = "Leaky Waveguide Devices (LWD) are a class of optical waveguide where light is partially confined by reflection mechanisms other than total internal reflection (TIR). Since TIR is not used, the restriction that the waveguide must have a higher refractive index than the surrounding medium can be relaxed. It is then possible to provide lossy waveguiding in channels containing aqueous solutions. Since these reflection mechanisms always provide less than 100{\%} reflectivity, light is gradually lost from the waveguide either by absorption or by radiative loss. Although this means that LWD cannot by used for long-distance light transmission, the typical propagation distances of a few millimetres to a few centimetres is sufficient for most μTAS sensing applications. A novel laminar-flow waveguide cytometer is described which uses Leaky Wave propagation to excite fluorescence.",
    author = "NJ Goddard and S Mohr and K Singh and R Holmes and K Joyce and JP Hulme and AF Bounaria and PR Fielden",
    year = "2000",
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    Goddard, NJ, Mohr, S, Singh, K, Holmes, R, Joyce, K, Hulme, JP, Bounaria, AF & Fielden, PR 2000, 'Leaky Waveguide Devices as Simple Sensitive Optical Detectors for use in μTAS Applications.', vol. 1, pp. 27-3.

    Leaky Waveguide Devices as Simple Sensitive Optical Detectors for use in μTAS Applications. / Goddard, NJ; Mohr, S; Singh, K; Holmes, R; Joyce, K; Hulme, JP; Bounaria, AF; Fielden, PR.

    Vol. 1, 2000, p. 27-3.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Leaky Waveguide Devices as Simple Sensitive Optical Detectors for use in μTAS Applications.

    AU - Goddard, NJ

    AU - Mohr, S

    AU - Singh, K

    AU - Holmes, R

    AU - Joyce, K

    AU - Hulme, JP

    AU - Bounaria, AF

    AU - Fielden, PR

    PY - 2000

    Y1 - 2000

    N2 - Leaky Waveguide Devices (LWD) are a class of optical waveguide where light is partially confined by reflection mechanisms other than total internal reflection (TIR). Since TIR is not used, the restriction that the waveguide must have a higher refractive index than the surrounding medium can be relaxed. It is then possible to provide lossy waveguiding in channels containing aqueous solutions. Since these reflection mechanisms always provide less than 100% reflectivity, light is gradually lost from the waveguide either by absorption or by radiative loss. Although this means that LWD cannot by used for long-distance light transmission, the typical propagation distances of a few millimetres to a few centimetres is sufficient for most μTAS sensing applications. A novel laminar-flow waveguide cytometer is described which uses Leaky Wave propagation to excite fluorescence.

    AB - Leaky Waveguide Devices (LWD) are a class of optical waveguide where light is partially confined by reflection mechanisms other than total internal reflection (TIR). Since TIR is not used, the restriction that the waveguide must have a higher refractive index than the surrounding medium can be relaxed. It is then possible to provide lossy waveguiding in channels containing aqueous solutions. Since these reflection mechanisms always provide less than 100% reflectivity, light is gradually lost from the waveguide either by absorption or by radiative loss. Although this means that LWD cannot by used for long-distance light transmission, the typical propagation distances of a few millimetres to a few centimetres is sufficient for most μTAS sensing applications. A novel laminar-flow waveguide cytometer is described which uses Leaky Wave propagation to excite fluorescence.

    M3 - Article

    VL - 1

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    ER -

    Goddard NJ, Mohr S, Singh K, Holmes R, Joyce K, Hulme JP et al. Leaky Waveguide Devices as Simple Sensitive Optical Detectors for use in μTAS Applications. 2000;1:27-3.