Absorption Measurement Using a Leaky Waveguide Mode

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  • OKAMOTO Takayuki
    The Institute of Physical and Chemical Research (Riken), Wako, Saitama, 351–01 Japan

書誌事項

公開日
1997
DOI
  • 10.1007/s10043-997-0354-0
公開者
公益社団法人 応用物理学会分科会 日本光学会

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説明

We propose an optical waveguide sensor using a leaky mode for absorption measurement of liquid samples. This sensor uses a single coupling prism. A cladding layer and a waveguide layer are directly deposited on the reflecting surface of the prism. The intensity of the internally reflected beam at an appropriate incident angle is very sensitive to the imaginary part of the sample attached to the surface of the waveguide layer. The sensitivity of this sensor is controlled by the thicknesses of both cladding and waveguide layers. We studied the performance of the sensor by numerical calculation.

収録刊行物

  • Optical Review

    Optical Review 4 (3), 354-357, 1997

    公益社団法人 応用物理学会分科会 日本光学会

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