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Numerical analysis for lacarized and ehnhaneed surface plasmon polariton of near field of dumbbell-Shaped aperture in the metallic screen.

Numerical analysis for lacarized and ehnhaneed surface plasmon polariton of near field of dumbbell-Shaped aperture in the metallic screen.
金属屏哑铃形孔径近场泪化和增强表面等离子体激元的数值分析
批准号:
15560030
负责人:
TANAKA Kazuo
金额:
$2.24万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (C)
财政年份:
2003
资助国家:
日本
项目状态:
已结题
起止时间:
2003 至 2004

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中文摘要
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英文摘要
The characteristics of optical near-fields around subwavelength apertures in metallic screens are important in research on near-field optical (NFO) technology. The aperture-scanning near-field optical microscope (aperture SNOM) is the most notable application of this technology, and offers resolution approximately equivalent to the dimensions of the subwavelength aperture. The aperture in these applications is smaller than the cutoff radius of the modes propagating in the probe, with the result that all modes run into cutoff and the aperture emits only an extremely small fraction of the input power. The aperture diameter cannot be reduced arbitrarily because a minimum level of emission must be ensured. Low transmission, observed as low light intensity at the aperture, therefore becomes the primary factor limiting the resolution of aperture SNOM. Optimization of the optical probe is therefore of great importance for advancement of the SNOM technique.Increasing the near-field intensity o … More f a subwavelength aperture has thus far been considered to be a trade off with smaller spot size. However, the present authors have recently proposed an I-shaped (dumbbell-shaped) aperture in a metallic screen that provides both high emission intensity and small spot size simultaneously, and have shown that this interesting characteristic is due to the surface plasmon polariton (SPP) excited inside the aperture.In this project, the dependence of the near-field intensities of the I-shaped aperture in a thick metallic screen on various parameters are investigated in detail, and the design of the I-shaped aperture is optimized so as to obtain high near-field intensity and small spot size. The scattering of optical waves scattered by the I-shaped aperture is solved numerically and the near-field intensities and scattering cross-sections of the aperture are calculated. The solutions are obtained numerically using a volume integral equation (VIE) by generalized conjugate residual (CGR) iteration and fast Fourier transformation (FTT). Less
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Simulations of nanometric optical circuits : Open-type surface Ppasmon polariton gap waveguide
纳米光路模拟:开放型表面Ppasmon极化子间隙波导
DOI: --
发表时间: 2003
期刊: Japanese Journal of Applied Physics 42・6A
影响因子: --
作者: [Kazuo Tanaka, Masahiro Tanaka]
通讯作者: Masahiro Tanaka
K.Tanaka, Masahiro Tanaka: "Simulations of Nanometric Optical Circuits : Open-Type Surface Plasmon Polariton Gap Waveguide"Japanese Journal of Applied Physics. 42・6A. L585-L588 (2003)
K.Tanaka、Masahiro Tanaka:“纳米光学电路的模拟:开放型表面等离子体极化子间隙波导”日本应用物理学杂志 42・6A(2003 年)。
DOI: --
发表时间:
期刊:
影响因子: --
作者: []
通讯作者:
DOI: 10.1046/j.1365-2818.2003.01155.x
发表时间: 2003-06
期刊: Journal of Microscopy
影响因子: 2
作者: [K. Tanaka;M. Tanaka]
通讯作者: K. Tanaka;M. Tanaka
K.Tanaka, Masahiro Tanaka: "Simulation of an aperture in the thick metallic screen that gives high intensity and small spot size using surface plasmon polariton"Journal of Microscopy. 210・3. 294-300 (2003)
K.Tanaka、Masahiro Tanaka:“使用表面等离激元对厚金属屏幕中的孔径进行模拟,提供高强度和小光斑尺寸”显微镜杂志 210・3 (2003)。
DOI: --
发表时间:
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影响因子: --
作者: []
通讯作者:
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