Simultaneous identification of the low-field induced tiny variation of complex refractive index for anisotropic and opaque magnetic-fluid thin film by a stable heterodyne mach-zehnder interferometer

Chin Yih Hong, Jen Jie Chieh, Shieh Yueh Yang, Hong Chang Yang, Herng Er Horng*

*此作品的通信作者

    研究成果: 雜誌貢獻期刊論文同行評審

    7 引文 斯高帕斯(Scopus)

    摘要

    We use a heterodyne Mach-Zehnder interferometer to simultaneously and simply measure the complex refractive index by only normal incidence on the specimen, instead of using a complicated measurement procedure or instrument that only measures the real or imaginary part of the complex refractive index. To study the tiny variation of the complex refractive index, the small complex refractive-index variation of a rare-concentration magnetic-fluid thin film, due to a weak field of less than 200 Oe, was processed by this interferometer. We also present the wavelength trend of the complex refractive index of magnetic fluids to verify the appearance of the slight change in a small wavelength range.

    原文英語
    頁(從 - 到)5604-5611
    頁數8
    期刊Applied Optics
    48
    發行號29
    DOIs
    出版狀態已發佈 - 2009 十月 10

    ASJC Scopus subject areas

    • 原子與分子物理與光學
    • 工程(雜項)
    • 電氣與電子工程

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