Theoretical Analysis of Wideband Optical Polarizing Films Using Oblique Metal Island Films

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  • 傾斜微粒子島状金属薄膜を用いた偏光フィルムの広帯域化の理論的検討
  • ケイシャ ビリュウシ シマジョウ キンゾク ハクマク オ モチイタ ヘンコウ フィルム ノ コウタイイキカ ノ リロンテキ ケントウ

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Oblique metal island (OMI) films exhibit large optical anisotropy. Therefore, using multilayers of the OMI films, optical polarizing films with a high extinction ratio and low insertion Joss can be realized. The OMI films can be formed using a conventional vacuum evaporation system. In this work, we designed wide·band polarizing films for 350-560 nm with the extinction ratio of ≥ 20 dB and the insertion loss of ≤ 0.5 dB by changing the shape of metal islands layer by layer.

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