'Slow'- and 'fast'-light in a single ring-resonator circuit: theory, experimental observations, and sensing applications

H.P. Uranus, L. Zhuang, C.G.H. Roeloffzen, Hugo Hoekstra

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    Transfer matrix method (TMM) was used to study the phenomena of ‘slow’- and ‘fast’-light in a single two-port ring-resonator (TPRR) circuit theoretically. Their classifications into ‘slow’- and ‘fast’-light with negative and positive group velocity (v_g), where ‘slow’ means |v_g|<c and ‘fast’ means |v_g|>c, will be introduced. The role of such phenomena in controlling light-matter interaction and pulse delay/’advancement’ will be discussed. Direct experimental observations on pulse temporal behaviors in the regimes of ‘slow’- and ‘fast’-light with negative and positive v_g will be demonstrated, showing large and small pulse ‘advancement’ and delay, respectively. Pulse splitting phenomenon as a transition from a highly delayed to a highly ‘advanced’ pulse and vice versa, will also be experimentally demonstrated. Theoretical simulations on the pulse delay and ‘advancement’ based on the TMM and Fourier transform, which show a good qualitative agreement to the experimental results, will also be presented. The exploitation of ‘slow’-light, either with positive or negative v_g for enhancing light-matter interaction will be discussed through evaluating their effects to the performance of integrated-optical refractometric sensor. It will be shown that when the light is ‘slow’, either with negative or positive v_g, there is enhancement of the sensor sensitivity. An integrated-optical sensor which exploits such properties and exhibits sensitivity of one order better than the present day state-of-the-art commercial Mach-Zehnder interferometer refractometric sensor, will be presented.
    Original languageUndefined
    Title of host publicationAbstract Collection Booklet of the 6th International Symposium on Modern Optics and Its Applications (ISMOA 2007)
    Place of PublicationIndonesia
    PublisherBandung Institute of Technology
    Number of pages2
    ISBN (Print)not assigned
    Publication statusPublished - 6 Aug 2007
    Event6th International Symposium on Modern Optics and Its Applications, ISMOA 2007 - Bandung Institute of Technology, Bandung, Indonesia
    Duration: 6 Aug 200710 Aug 2007
    Conference number: 6

    Publication series

    PublisherBandung Institute of Technology


    Conference6th International Symposium on Modern Optics and Its Applications, ISMOA 2007
    Abbreviated titleISMOA


    • EWI-11518
    • IR-64513
    • METIS-245837

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