A TM-Pass/TE-Stop Polarizer Based on a Surface Plasmon Resonance

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  • Yuu Wakabayashi
    Faculty of Engineering, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo 184-8584, Japan
  • Junji Yamauchi
    Faculty of Engineering, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo 184-8584, Japan
  • Hisamatsu Nakano
    Faculty of Engineering, Hosei University, 3-7-2 Kajino-cho, Koganei, Tokyo 184-8584, Japan

書誌事項

公開日
2011-08-22
資源種別
journal article
権利情報
  • http://creativecommons.org/licenses/by/3.0/
DOI
  • 10.1155/2011/867271
公開者
Hindawi Limited

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説明

<jats:p>A TM-pass/TE-stop polarizer consisting of a metal film sandwiched between dielectric gratings is investigated using the finite-difference time-domain method. At normal incidence with respect to the grating plane, a transmissivity of more than 94% and a reflectivity of more than 98% are obtained at  m for the TM and TE waves, respectively. The extinction ratio is more than 17 dB over a wavelength range of 1.50 m to 1.75 m. A high extinction ratio is maintained at oblique incidence, although the wavelength range shifts towards longer wavelengths. The TM-pass/TE-stop operation is also achieved with a modified structure, in which a dielectric grating is sandwiched between metal films.</jats:p>

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