Magnetic field dependence of Cotton-Mouton rotation for magnetic fluid films

H. E. Horng, Chin Yih Hong, H. C. Yang, I. J. Jang, S. Y. Yang, J. M. Wu, S. L. Lee, F. C. Kuo

    Research output: Contribution to journalArticlepeer-review

    35 Citations (Scopus)


    The azimuthal distribution of the transmitted intensity of a linearly polarized laser beam through a 6 μm-thick magnetic fluid film was measured under various magnetic fields H normal to the direction of the light propagation to study the magnetic field dependent Cotton-Mouton (C-M) effect of the sample. Here, the azimuthal angle η is the angle between the transmission axes of the polarizer and the analyzer. For obtaining the most significant variation in the polarization of the incident light, the angle between H and the polarization of the incident light θ is set to be 45°. The I-η curves were found to be symmetric with relative maximum at ηI=max around 0° and minimum at ηI=min around 90°. Furthermore, these curves showed a gradual shift up to Δη = 1.55° with respect to the curve under zero magnetic field as H increased to 250 Oe. All the details will be discussed in this report.

    Original languageEnglish
    Pages (from-to)215-217
    Number of pages3
    JournalJournal of Magnetism and Magnetic Materials
    Issue number1-3
    Publication statusPublished - 1999 Jul


    • Cotton-Mouton rotation
    • Elliptical polarization
    • Magnetic fluid film

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics

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