Optical Transmission Properties of Subwavelength Slit Structures in Visible Wavelength Range
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概要
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We report an experimental study of the optical transmission of polarized light through subwavelength slit structures in Au films. We investigated the transmission properties by varying the slit number, period, and width. The transmission spectra were strongly depend on the polarization of the incident light. Transmission minima were observed for transverse magnetic (TM) polarization at the wavelength of surface plasmon (SP) resonance at the air–Au interface. We measured the transmission normalized by the slit area at a wavelength of 780 nm by varying the slit width, and observed that the normalized transmission increased with the narrowing of the slit.
- 2009-05-25
著者
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Takahashi Yuta
Institute of Quantum Science, Nihon University, 1-8-14 Kanda-Surugadai, Chiyoda, Tokyo 101-8308, Japan
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Mori Shigehiko
Institute of Quantum Science, Nihon University, 1-8-14 Kanda-Surugadai, Chiyoda, Tokyo 101-8308, Japan
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Hasegawa Keisuke
Institute of Quantum Science, Nihon University, 1-8-14 Kanda-Surugadai, Chiyoda, Tokyo 101-8308, Japan
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Segawa Toshiya
Institute of Quantum Science, Nihon University, 1-8-14 Kanda-Surugadai, Chiyoda, Tokyo 101-8308, Japan
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Inoue Shuichiro
Institute of Quantum Science, Nihon University, 1-8-14 Kanda-Surugadai, Chiyoda, Tokyo 101-8308, Japan
関連論文
- Optical Transmission Properties of Subwavelength Slit Structures in Visible Wavelength Range
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