Simultaneous sensing of light and sound velocities of fluids in a two-dimensional phoXonic crystal with defects

Samira Amoudache, Yan Pennec, Bahram Djafari Rouhani, Antoine Khater, Ralf Lucklum, Rachid Tigrine

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    43 Citations (Scopus)

    Abstract

    We theoretically investigate the potentiality of dual phononic-photonic (the so-called phoxonic) crystals for liquid sensing applications. We study the transmission through a two-dimensional (2D) crystal made of infinite cylindrical holes in a silicon substrate, where one row of holes oriented perpendicular to the propagation direction is filled with a liquid. The infiltrated holes may have a different radius than the regular holes. We show, in the defect structure, the existence of well-defined features (peaks or dips) in the transmission spectra of acoustic and optical waves and estimate their sensitivity to the sound and light velocity of the analyte. Some of the geometrical requirements behave in opposite directions when searching for an efficient sensing of either sound or light velocities. Hence, a compromise in the choice of the parameters may become necessary in making the phoxonic sensor.

    Original languageEnglish
    Article number134503
    JournalJournal of Applied Physics
    Volume115
    Issue number13
    DOIs
    Publication statusPublished - 7 Apr 2014

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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  • Cite this

    Amoudache, S., Pennec, Y., Djafari Rouhani, B., Khater, A., Lucklum, R., & Tigrine, R. (2014). Simultaneous sensing of light and sound velocities of fluids in a two-dimensional phoXonic crystal with defects. Journal of Applied Physics, 115(13), [134503]. https://doi.org/10.1063/1.4870861